Sharp MD-MT821(GL), MD-MT821WBL, MD-MT821WGL Service Manual

MD-MT821/W

– 1 –

CONTENTS

Page

SAFETY PRECAUTION FOR SERVICE MANUAL (MD-MT821W ONLY)............................................................................ 2

SPECIFICATIONS ................................................................................................................................................................. 3

NAMES OF PARTS ............................................................................................................................................................... 4

OPERATION MANUAL .......................................................................................................................................................... 5

QUICK GUIDE (MD-MT821 ONLY) ....................................................................................................................................... 8

DISASSEMBLY.................................................................................................................................................................... 10

REMOVING AND REINSTALLING THE MAIN PARTS....................................................................................................... 11

ADJUSTMENT ...................................................................................................................................................................... 12

NOTES ON SCHEMATIC DIAGRAM .................................................................................................................................. 28

BLOCK DIAGRAM ............................................................................................................................................................... 29

SCHEMATIC DIAGRAM/WIRING SIDE OF P.W.BOARD................................................................................................... 30

WAVEFORMS OF MD CIRCUIT ......................................................................................................................................... 37

TROUBLE SHOOTING ........................................................................................................................................................ 38

FUNCTION TABLE OF IC.................................................................................................................................................... 41

PARTS GUIDE/EXPLODED VIEW PACKING OF THE SET (MD-MT821 ONLY)

SERVICE MANUAL

SHARP CORPORATION

No. S4913MDMT821/

This document has been published to be used for after sales service only. The contents are subject to change without notice.

• In the interests of user-safety the set should be restored to its original condition and only parts identical to those specified be used.

MD-MT821(GL) MD-MT821W(BL) MD-MT821W(GL)

Illustration: MD-MT821W

Illustration: MD-MT821

MD-MT821/W

– 2 –

Precaution to be taken when replacing and servicing the laser pickup. The following precautions must be observed during servicing to protect your eyesagainst exposure to the laser.

Warning of possible eye damage when repairing: If the AC adaptor or batteries are connected when the top houising (disc cover) of the unit is removed, and the PLAY key is pressed, the laser will light up during docus access (2-3 seconds). (Fig. 2-1) During the operation, the laser will lesk from the opening btween the magnetic head and the mechanical chassis (Fig. 2-2). In order to protect your eyes, you most not look at the laser durnd repaor. Before repaoring be sure to disconnect the AC adaptor and remove the batteries.

Figure 2-1 Figure 2-2

Magnet Head

Lasar Beam

Optical Pick-Up

Main PWB

Spindle motor

Mechanism Chassis

Precaution to be taken when replacing and servicing the Laser Pickup.

The AEL (Accessible Emission Level) of Laser Power Output for this model is specified to be lower than Class I Requirements. However, the following precautions must be observed during servicing to protect your eyes against exposure to the laser beam.

(1) When the cabinet has been removed, the power is

turned on without a compact disc, and the Pickup is on a position outer than the lead-in position, the Laser will light for several seconds to detect a disc. Do not look into the Pickup Lens.

(2) The Laser Power Output of the Pickup inside the unit

and replacement service parts have already been adjusted prior to shipping.

(3) No adjustment to the Laser Power should be attempted

when replacing or servicing the Pickup.

(4) Under no circumstances look directly into the Pickup

Lens at any time.

(5) CAUTION - Use of controls or adjustments, or

performance of procedures other than those specified herein may result in hazardous radiation exposure.

SAFETY PRECAUTION FOR SERVICE MANUAL

(MD-MT821W ONLY)

CAUTION

Laser Diode Properties

● Material: GaAIAs

● Wavelength: 785 nm

● Pulse time:

Read mode; 0.8 mW Continuous Write mode; max. 10 mW 0.5S

min. cycle 1.5S

Repetition

● This Portable MiniDisc Recorder is classified as a CLASS 1 LASER product.

● The CLASS 1 LASER PRODUCT label is located on the bottom.

● Use the portable minidisc recorder only in accordance with the instructions given in

this manual and do not attempt to interfere with the interlock switch or make any other adjustment as this may result in exposure to hazardous radiation.

Magnet head

Optical pick-up

Top Cabinet

MD-MT821/W

– 3 –

FOR A COMPLETE DESCRIPTION OF THE OPERATION OF THIS UNIT, PLEASE REFER TO THE OPERATION MANUAL.

General

Power source: DC 3.6 V : Rechargeable lithium-ion (MT821) battery x 1

DC 5 V : AC adaptor (AC 120V, 60 Hz) DC 3.4V: Battery case

(commercially available, "AA" size, alkaline battery x 1)

DC 4.5V: Separately available car

adaptor, AD-CA20X (for cars with a 12-24V DC negative ground electrical system)

Power source: DC 3.6 V : Rechargeable lithium-ion (MT821W) battery x 1

DC 5 V : AC adaptor

(AC 110 - 240V, 50/60 Hz)

DC 3.4V: Battery case

(commercially available, "AA" size, alkaline battery x 1)

DC 4.5V: Separately available car

adaptor, AD-CA20X (for cars with a 12-24V DC negative earth electrical system)

Power consumption: 7 W (AC adaptor) (MT821) Power consumption: 0.15A (AC adaptor) (MT821W) Output power: RMS; 20 mW (10 mW + 10mW)

(0.2% T.H.D.)

Charging time: Approx. 3 hours

(When using the AC adaptor included with the unit)

Battery life:

The continuous recording time is for analogue inputs when the volume level is set to "VOL 0". The continuous play time shows the value when the volume level is set to "VOL 15". The above values are the standard values when the unit is charged and used at an ambient temperature of 20

o

C. The operating time when using an alkaline battery may be different, depending on the type and manufacturer of the battery, and on the operating temperature.

Input sensitivity:

Output level: (MT821)

Output level: (MT821W)

Dimensions: Width: 3-1/4" (82.5 mm)

Height: 13/16" (20.7 mm) Depth: 3-1/16" (77.9 mm)

Weight: 0.39 lbs. (177 g) with rechargeable

battery

Input socket: Line/optical digital, microphone

(powered by the main unit)

Output socket: Headphones (impedance: 19 ohms)/ (MT821) remote control unit Output socket: Earphones (impedance: 32 ohms)/ (MT821W) remote control unit

MiniDisc Recorder

Type: Portable MiniDisc recorder Signal readout: Non-contact, 3-beam semi-conductor

laser pick-up

Audio channels: Stereo 2 channels/monaural (long-

play mode) 1 channel

Frequency response: 20 - 20,000 Hz (± 3 dB) Rotation speed: Approx. 400 - 900 rpm Error correction: ACIRC (Advanced Cross Interleave

Reed-Solomon Code)

Coding: ATRAC (Adaptive TRansform

Acoustic Coding), 24-bit computed type

Recording method: Magnetic modulation overwrite

method

Sampling frequency: 44.1 kHz (32 kHz and 48 kHz signals

are converted to 44.1 kHz, and then recorded.)

Wow and flutter: Unmeasurable (less than ±0.001%

W.peak)

SPECIFICATIONS

When using the rechargeable battery (fully charged) included with the unit

When using one, commercially available, high capacity, "AA" size, alkaline battery (in the battery case)

When using one, commercially available, high capacity, "AA" size battery with the rechargeable battery (fully charged)

Continuous recording:

Approx. 8 hours

Continuous recording:

Approx. 3 hours

Continuous recording:

Approx. 11 hours

Continuous play:

Approx. 11.5 hours

Continuous play:

Approx. 6.5 hours

Continuous play: Approx. 18 hours

Recording level

Reference input level

Input impedance

MIC H 0.25 mV 10 k ohms MIC L 2.5 mV 10 k ohms LINE 100 mV 20 k ohms

Specifications for this model are subject to change without prior notice

Headphones — 10 mW + 16 ohms

10 mW

LINE 250 mV — 10 k ohms

(-12dB)

Maximum

output level

Specified

output

Load

impedance

Earphones — 10 mW + 32 ohms

10 mW

LINE 250 mV — 10 k ohms

(-12dB)

Maximum

output level

Specified

output

Load

impedance

MD-MT821/W

– 4 –

NAMES OF PARTS

Remote control unit

1. Synchro Recording Indicator

2. Character/Time Information Indicator

3. Record Indicator

4. Repeat Indicator:

5. Random Indicator

6. Disc Mode Indicator

7. Total Track Number Indicator

8. Track Number Indicator

9. Battery Indicator:

10. Headphones Jack (MT821)

10. Earphones Socket (MT821W)

11. Display/Volume Shuttle Switch

12. Hold Switch

13. Play/Pause/Fast Reverse/ Fast Forward Shuttle Switch

14. Stop/Power Off/Bass/Play Mode Shuttle Switch

Main unit

1. Monaural Long-Play Mode Indicator

2. Record Indicator

3. Level Meter

4. Repeat Indicator:

5. TOC Indicator

6. Battery Indicator:

7. Random Indicator

8. Track Number Indicator

9. Character/Time Information Indicator

10. Synchro Recording Indicator

11. Disc Mode Indicator

12. Disc Name Indicator

13. Track Name Indicator

14. Remaining Recording Time Indicator

15. Total Track Number Indicator

16. Record/Track Mark Button

17. Mode Button

18. Bass/Delete Button

19. Enter/Fast Play/Synchro Button

20. Volume/Cursor Up Button: +

21. Volume/Cursor Down Button: -

22. Edit/Auto Mark/Time Mark Button

23. Display/Character Select Button

24. Fast Reverse/Fast Forward/Record-ing Level Control/ Name Select Shuttle Switch

25. Stop/Power Off Button: /:OFF

26. Play/Pause Button:

27. Open Lever

28. Headphones Jack (MT821)

28. Earphones Socket (MT821W)

29. Optical/Line Input Jack (MT821)

29. Optical/Line Input Socket (MT821W)

30. Handstrap Holder

31. Hold Switch

32. Battery Case Connection Terminals

33. Microphone Input Jack (MT821)

33. Microphone Input Socket (MT821W)

34. 5V DC Input Jack (MT821)

34. 5V DC Input Socket (MT821W)

35. Rechargeable Lithium-lon Battery Compartment

RANDOM

TOTAL

1

REC

SYNC

1

6

2

3

4 5

78 9

13

10

11

12

14

12345

6 7

8 9

10 11

12 13

1415

20

16

26

M

O

D

E

B

A

S

E

N

T

E

R

S

Y

N

C

R

E

C

L

E

V

E

L

:

O

F

VOL

REC

E

D

I

T

D

I

S

P

17 18 19

21

25242322

27 28 30

29

31

32

35

34

33

MD-MT821/W

– 5 –

OPERATION MANUAL

POWER SOURCE

■ Rechargeable battery power

This unit can be used with 4 different power sources: a rechargeable battery, an AC

adaptor, a battery case, and a separately available car adaptor (AD-CA20X).

When the rechargeable battery is used for

the first time or when you want to use it af-

ter a long period of disuse, be sure to charge

it fully.

1

Open the rechargeable battery compart-

ment cover.

2

Insert the rechargeable battery.

● Insert the side with the arrow first.

3

Close the rechargeable battery compart-

ment cover.

4

Plug the AC adaptor into the AC soc ket,

and then insert the plug on the AC adap-

tor lead into the DC IN 5V socket.

● About 4 seconds later, “

” will

flash, and the battery will begin charg-

ing.

● Battery charging will be complete in

3.0 hours. When the charging is com-

plete, “

” will go out.

Notes:

● After charging has been completed, the

AC adaptor may be left connected.

(For example, when charging at night)

● If the rechargeable battery is in the unit,

it will be charged, even whilst operating

the unit. (Float charge)

● Do not force open the rechargeable bat-

tery cover too wide.

● When the AC adaptor plug is inserted

and a MiniDisc has already been in-

serted, playback may start automatically .

In this case, press the ■ / :OFF button

twice to turn the power off.

1

2

4

OPEN

Mark

AC 110-240V, 50/60 Hz

To the DC IN 5V socket

Insert securely, all the

way in.

CONVENIENT OPERATION OF THE UNIT

■ Checking the remaining amount

of battery charge

The remaining amount of battery charge

is shown by the battery indicator (

)

during operation.

< How to read the battery indicator >

● When the battery is completely discharged,

the whole battery indicator will flash. Re-

charge the battery or replace the alkaline

battery with a new one.

● When the battery has run completely out,

“BATT EMPTY” (main unit) and “Lo BATT”

(remote control unit) will appear. Then, the

power will be disconnected automatically.

Notes:

● When using the unit with an alkaline bat-

tery or a rechargeable battery, the battery

indicator will not correctly display the remain-

ing capacity for approximately 20 seconds

after the power has been turned on.

● When the AC adaptor included with this unit

or a separately available car adaptor is

used, the battery indicator will not be shown.

● The number of bars shown in the battery

indicator may increase or decrease, de-

pending on the operation being performed.

This is normal.

● When the rechargeable battery and the al-

kaline battery are used at the same time,

the rechargeable battery is used first, then

the alkaline battery.

Since the battery indicator shows the re-

maining amount of the particular battery

being used, the number of bars will in-

crease when the unit switches to the al-

kaline battery.

Battery indicator

When the battery needs charging, it is

impossible to start recording or editing.

When the battery is

completely charged

Charging is

needed.

RECORDING USING THE OPTICAL DIGITAL CABLE

There are cases where digital

recording may be impossible.

In the following cases digital recording is

impossible, even if you are using digital

cables.

When you attempt to make a new digital

recording from a track that was digitally re-

corded on a MiniDisc.

● MiniDiscs are designed so that only first

generation digital copies can be made.

Further digital copies are prevented by

the SCMS (Serial Copy Management

System).

Playback

Digital cable

CD player, MD

player, etc.

Digitally recorded MiniDisc

Analogue recording is

possible.

Recording

Playback

Digital cable

Recording

MD-MT821/W

– 6 –

Many potential “problems” can be resolved by the owner without calling a service techni-

cian.

If something seems to be wrong with this product, check the following before calling your

authorised SHARP dealer or service centre.

PROBLEM CAUSE

The unit does not turn

on.

● Is the AC adaptor disconnected?

● Is the battery exhausted?

● Is the unit in the hold mode?

● Has condensation formed inside the unit?

● Is the unit being influenced by mechanical shock or by

static electricity?

● Is the volume set too low?

● Is the remote control unit or the earphones plugged in?

● Are you trying to play a MiniDisc with data on it instead

of a MiniDisc containing music?

● Is the unit in the hold mode?

● Is the battery exhausted?

● Is the remote control unit plug or the earphone plug in-

serted firmly?

● Is the battery exhausted?

● Is the unit being subjected to excessive vibration?

● Has the track number or character information been

written on the disc yet?

● Is the unit in the recording or editing mode?

● Is the MiniDisc protected against accidental erasure?

● Is the unit connected properly to the other equipment?

● Is the AC adaptor unplugged or did a power failure

occur whilst recording or editing?

● Is the unit in the hold mode?

● Is an optical signal being output from the external

equipment?

Read the operation manual for the external equipment.

No sound is heard from

the earphones.

When the operation

buttons are pressed, the

unit does not respond.

Some sounds are

skipped.

The MiniDisc cannot be

ejected.

Recording and editing

are impossible.

■ If trouble occurs

When this product is subjected to strong

external interference (mechanical shock,

excessive static electricity, abnor mal sup-

ply voltage due to lightning, etc.) or if it is

operated incorrectly, it may malfunction. If

such a problem occurs, do the following:

1. Unplug the AC adaptor from the AC

socket.

2. Remove the battery.

3. Leave the unit completely unpowered for

approximately 30 seconds.

4. Plug the AC adaptor back into the AC

socket and retry the operation.

If strange sounds, smell or smoke come out

of the unit or an object is dropped into the

unit, remove the AC adaptor from the AC

socket immediately and contact an

authorised SHARP service centre.

TROUBLESHOOTING

■ Moisture condensation

In the following cases, condensation

may form inside the unit.

● Shortly after turning on a heater.

● When the unit is placed in a room where

there is excessive steam or moisture.

● When the unit is moved from a cool

place to a warm place.

When the unit has condensation

inside, the disc signals cannot be

read, and the unit may not function

properly.

● If this happens, remove the disc.

The condensation should evaporate in

approximately 1 hour. The unit will then

function properly.

When the number of tracks used

reaches the limit, regardless of the

remaining recording time, further

recording will be impossible.

(Maximum number of tracks: 255)

If a MiniDisc has been recorded or

edited repeatedly or if a MiniDisc has

scratches on it, it may not be possible

to record the maximum number of

tracks on it.

If there are scratches on a disc, the unit

will automatically avoid recording in

those areas. The recording time will be

reduced.

When the remaining recording time of

a disc is displayed, short tracks less

than 12 seconds long may not be

included in the total.

For MiniDiscs on which repeated

recording and editing operations were

performed, the COMBINE function

may not work.

A cluster (about 2 seconds) is normally

the minimum unit of recording. So, even

if a track is less than 2 seconds long, it

will use about 2 seconds of space on the

disc.

Therefore, the time actually available for

recording may be less than the

remaining time displayed.

If there are scratches on discs, those

sections will be automatically avoided

(no recording will be placed in those

sections). Therefore, the recording time

will be reduced.

For MiniDiscs on which repeated

recording and editing were performed,

some sounds may be skipped whilst

cueing and reviewing.

If there are scratches or dust on a

MiniDisc, the track numbers following

that track will be increased by one.

MINIDISC SYSTEM LIMITATIONS

MiniDiscs are recorded using a different system than is used for cassette tapes or DAT

recordings. Therefore, the following conditions may be encountered, depending on how

the disc has been recorded or edited. These are due to system limitations, and should be

considered normal.

Even if the maximum recording

time of a MiniDisc has not been

reached, “DISC FULL” or “TOC

FULL” may be displayed.

Even if the number of tracks and

the recording time have not

reached the limit, “DISC FULL”

may be displayed.

Even if several short tracks are

erased, the remaining recording

time may not show an increase.

Two tracks may not be combined

in editing.

The total of the recorded time and

time remaining on a disc may not

add up to the maximum possible

recording time.

When recorded tracks are played

back using the cue and review op-

erations, some sounds may be

skipped.

A track number can be created in

the middle of a track.

MD-MT821/W

– 7 –

● The battery run down.

● Nothing is recorded.

● No copy can be made because of the

SCMS copyright system.

● A track cannot be edited.

● Recording cannot be performed

correctly due to vibration or shock in

the unit.

● Editing is impossible.

● The disc is scratched.

● Poor connection of the digital cable.

● The disc is out of recording space.

● The unit is in the hold mode.

● The EJECT lever was moved during

recording or editing.

● A disc has not been loaded.

● You tried to record on a playback- only

disc.

● Improper power is being supplied.

● The MD is write protected.

● You tried to record without loading an

MD.

● A playback-only MD was loaded and

the REC button was pressed when the

power was off.

● The disc is damaged.

● Since a track number is currently being

located or written to, the unit cannot

accept your command.

● You have come to the conclusion that

the unit is out of order.

● The temperature is too high.

● A large portion of the disc has been

damaged.

● There is no space left for recording

character information (track names,

disc names, etc.).

● The track has been protected from

being erased.

● A large portion of the disc has been

damaged.

● There is an error in the recorded signal.

● A disc which contains data other than

music was played.

● There is an error in the signal from the

disc.

● Charge the rechargeable battery or

replace the alkaline battery (or use the

AC adaptor for power).

● Replace the disc with a recorded disc.

● Record using the analog cable.

● Change the stop position of the track

and then try editing it.

● Re-record or replace it with another

recordable disc.

● Check the number of tracks.

● If the sound you hear is not right, try

recording again.

● Replace the disc with another

recordable disc.

● Connect the digital cable securely.

● Replace it with another recordable disc.

● Return the HOLD switch to its original

position.

● Turn off the power and remove the

MiniDisc.

● Load a disc.

● Replace it with a recordable disc.

● Use one of the specified power

sources.

● Move the write protection knob back to

its original position.

● Load a recordable MD.

● Replace it with a recordable MD.

● Reload the disc or replace it.

● Replace it with another recorded disc.

● Wait for a while and try the operation

again.

● To have it repaired, go to the distributor

where you purchased the unit.

● Turn off the power, and wait for a while.

● Replace it with another recorded disc.

● Replace it with another recordable disc.

● Edit the track with the device on which

it was recorded.

● Replace it with another recorded disc.

● Erase all of the signal errors, and then

try recording again.

● A disc which contains non-music data

cannot be played.

● Replace it with another recorded disc.

ERROR MESSAGES

( ): Error messages seen on the remote control.

Error messages Remedy

BATT EMPTY

(Lo BATT)

BLANK DISC

(BLANK)

Can’t COPY

(Not REC)

Can’t EDIT

Can’t REC

(Not REC)

Can’t WRITE

DEFECT

(DEFECT)

Din UNLOCK

(UNLOCK)

READ ERROR

(E-READ)

DISC FULL

HOLD

(HOLD)

LOCKED

LOCK ERROR

NO DISC

PB DISC

POWER ?

SORRY

(SORRY)

SYSTEM ERR

(E-SYS)

TEMP OVER

(E-TEMP)

TOC ERROR

(E-TOC)

TOC FULL

Tr. Protect

U TOC ERROR

(E-UTOC)

? DISC

(?DISC)

Meaning

PROTECTED

MD-MT821/W

– 8 –

QUICK GUIDE (MD-MT821 ONLY)

1

Check the supplied accessories /

Compruebe los accesorios suministrados

1

RELEASE LOCK

3

1

2

Power source /

Alimentación

PORTABLE MINIDISC RECORDER

Quick Guide/Guía rápida

MD-MT821

● Handstrap x 1

●

Correa para la

muñeca x 1

● Carrying Bag x 1

●

Caja para el

transporte x 1

● Analog Cable x 1

●

Cable analógico x 1

● Optical Digital Cable

x 1

●

Cable óptico digital x

1

● Battery Case x 1

●

Caja de la pila x 1

● AC Adaptor x 1

●

Adaptador de CA x 1

● Headphones x 1

●

Auriculares x 1

● Remote Control Unit

x 1

●

Controlador remoto

x 1

● Rechargeable

Lithium-Ion Battery x 1

●

Batería recargable de

litio-ion x 1

■ Rechargeable battery power

■

Alimentación de la batería recargable

• AC 120V,

60Hz

•

120V CA,

60Hz

■ Alkaline battery power

■

Alimentación de la pila alcalina

● Make sure that a fully charged

rechargeable battery is inserted.

● Do not use the unit if it only has an

alkaline battery in it.

• Back of the MD recorder

•

Parte posterior de la

grabadora de MD

■AC power

■

Alimentación de CA

Open.

Abrir.

Press.

Pulsar.

• AC 120V, 60Hz

•

120V CA, 60Hz

1

2

OPEN

3

Printed in Japan

Impreso en Japón

●

Asegúrese de que se ha insertado una

batería completamente cargada.

●

No emplee el aparato si sólo tiene una

pila alcalina instalada.

Mark

Marca

3

Connection /

Conexión

■ Analog recording

■

Grabación analógica

■ Digital recording

■

Grabación digital

■ Microphone

■

Micrófono

Stereo microphone

Micrófono estéreo

Recording side

Lado de grabación

MIC IN

PLUG IN

POWER

OPTICAL/

LINE IN

• To the line output jacks

on a stereo

•

A los enchufes de

salida de línea de un

equipo estéreo

L

R

(RIGHT)

(DERECHO)

• Analog cable included with this unit

•

Cable analógico suministrado con este

(LEFT)

(IZQUIERDO)

Playback side

Lado de reproducción

Recording side

Lado de grabación

OPTICAL/

LINE IN

• Optical digital cable

(supplied)

•

Cable óptico digital

(suministrado)

Playback side

Lado de reproducción

Recording side

Lado de grabación

DIGITAL OUT

MD-MT821/W

– 9 –

2

1

3

R

E

C

L

E

V

E

L

REC

E

N

T

E

R

S

Y

N

C

2

1

3

R

E

C

L

E

V

E

L

REC

E

N

T

E

R

S

Y

N

C

2

1

3

4

Recording /

Grabación

After recording:

Después de la grabación:

To remove the MiniDisc:

Para extraer el minidisco:

Turn off the power and move

the OPEN lever in the direction

indicated by the arrow.

Desconecte la alimentación y

mueva la palanca OPEN en el

sentido indicado por la flecha.

Press the ENTER/SYNC button.

Pulse el botón ENTER/SYNC.

Begin playback on the source equipment.

Inicie la reproducción en el equipo fuente.

Press the ● REC button.

Pulse el botón

●

REC.

When a noise, such as a person speaking, is

picked up by the microphone, recording will

begin automatically.

Connect the stereo microphone to

the MIC IN jack.

Insert a recordable MiniDisc.

Inserte un minidisco grabable.

■ Recording from CDs or MDs (Synchro recording)

■

Grabación de discos compactos o minidiscos (Grabación sincronizada)

■ Recording from the microphone (Mic synchro recording)

■

Grabación de un micrófono (Grabación sincronizada con micrófono)

Press the ENTER/SYNC button to select the

synchro recording level. (This level can be

changed, even while recording.)

Press the ■/:OFF button while in the stop mode.

Pulse el botón

■

/:OFF estando en el modo de parada.

Connect the external equipment.

Conecte el equipo externo.

1

Insert a recordable MiniDisc.

Inserte un minidisco grabable.

2

Press the ● REC button.

Pulse el botón

●

REC.

3

While playing sound from the external

equipment connected to this unit, move the

shuttle switch up or down to adjust the

recording level.

4

5

6

1

2

3

4

5

6

Press the ■/:OFF button.

Pulse el botón

■

/:OFF.

To stop recording:

Para detener la grabación:

Mientras se reproduce el sonido del equipo

externo conectado a este aparato, mueva el

selector de mando de lanzadera hacia arriba o

abajo para ajustar el nivel de grabación.

Conecte el micrófono estéreo al

enchufe MIC IN del aparato principal.

Mueva el selector de mando de lanzadera hacia

arriba o abajo para ajustar el nivel de grabación.

Move the shuttle switch up or down to adjust

the recording level.

Pulse el botón ENTER/SYNC para seleccionar el

nivel de la grabación sincronizada. (Este nivel

podrá cambiarse incluso durante la grabación.)

Cuando el micrófono capte un ruido, el de una

persona que hable por ejemplo, la grabación

empezará automáticamente.

5

Playing a MiniDisc /

Reproducción de un minidisco

REMOTE

2

1

3

Insert the headphones plug firmly into the

headphones jack on the remote control unit.

1

Plug the remote control unit into the

jack

on the main unit. Push the plug all the way in.

2

● The power will be turned on automatically, and

playback will start from the first track.

(Auto-play function)

●

La alimentación se conectará automáticamente, y

la reproducción empezará desde la primera pista.

(Función de reproducción automática)

Load a MiniDisc in the direction indicated

by the arrow on the MiniDisc, with the label

side facing up.

To interrupt playback:

Para interrumpir la reproducción:

Press the 06 button during playback.

● To resume playback, press the 06 button again.

Pulse el botón

06

durante la reproducción.

●

Para reanudar la reproducción, pulse de nuevo el botón

06

To turn off the power:

Para desconectar la alimentación:

Press the 06 button.

In the following cases, the auto-play function will not work.

● When the recordable MiniDisc write protection tab is

closed

● When the auto-play function has been canceled

Playback does not start when a MiniDisc is inserted:

La reproducción no empieza cuando se inserta un

minidisco:

6

Sound control /

Control del sonido

Adjust the bass level.

Each time the BASS button is pressed, the tone will be

switched as follows:

• Volume (0 - 30)

•

Volumen (0 - 30)

To stop playback:

Para detener la reproducción:

Press the ■/:OFF button.

Pulse el botón

■

/:OFF.

Press the ■/:OFF button while in the stop mode.

Pulse el botón

■ /

:OFF estando en el modo de parada.

3

Ajuste el volumen.

Desde el aparato principal:

Pulse el botón + para aumentar el volumen y el botón –

para reducirlo.

Desde el controlador remoto:

Mueva el selector de mando de lanzadera una vez hacia

arriba para aumentar el volumen, y muévalo hacia abajo

para reducirlo.

Adjust the volume.

From the main unit:

Press the + button to increase the volume and the –

button to decrease the volume.

From the remote control unit:

Move the shuttle switch up once to increase the volume,

and move it down once to decrease the volume.

BASS 1 -------Bass sounds are emphasized slightly.

BASS 2 ------- Bass sounds are emphasized more.

BASS 3 ------- Bass sounds are emphasized even more.

BASS OFF ---- Bass emphasiz is canceled.

BASS 1 -------

Los sonidos graves se realzan ligeramente.

BASS 2 -------

Los sonidos graves se realzan más.

BASS 3 -------

Los sonidos graves se realzan aún más.

BASS OFF ----

El realce de los graves se cancela.

Inserte firmemente la clavija de los auriculares

en el enchufe de auriculares del controlador

remoto.

Enchufe el controlador remoto en el enchufe

del aparato principal. Empuje completamente

hacia adentro la clavija.

Cargue un minidisco en el sentido indicado

por la flecha del minidisco, con el lado de la

etiqueta hacia arriba.

Pulse el botón

06 .

En los casos siguientes, la función de reproducción

automática no se activará.

●

Cuando esté cerrada la lengüeta de protección contra

escritura del minidisco grabable

●

Cuando haya sido cancelada la función de reproducción

automática

Ajuste el nivel de los graves.

Cada vez que pulse el botón BASS, el tono cambiará de

la forma siguiente:

MD-MT821/W

– 10 –

1 Bottom Lid 1. Screw ..................... (A1) x5 10-1

2 Top Cabinet 1. Open the disc lid 10-1

2. Screw .....................(B1) x4

3. Flexible PWB..........(B2) x2 10-3

3 Center Cabinet A 1. Hook ...................... (C1) x2 10-2

4 Center Cabinet B 1.

Remove in the arrow direction.

10-2

5 Main PWB 1. Flexible PWB ......... (D1) x2 10-3

2. Soldering ............... (D2) x2

3. Screw .................... (D3) x1

6 Mechanism Unit

1. Raise the rear part, and remove

10-4

in the arrow direction.

DISASSEMBLY

Cares before disassembling

When assembling the machine after disassembling or

repair, observe the following requirements so as to ensure safety and performance.

1. Remove the batteries from the machine, and take out the mini-disc.

2. When assembling after repair, be sure to restore the initial location of wires. Since the screws are small, incorrect fixing may result in malfunction.

3. When repairing, pay utmost attention to static electricity of IC.

REMOVAL

PROCEDURE

STEP

FIGURE

Figu re 10-1

Figure 10-2

Figure 10-3

Caution:

Carefully handle the main PWB and flexible PWB. After removing the flexible PWB (*1) for the optical pickup from the connector, do not touch directly the front end of flexible PWB with your hand so as to prevent damage of optical pickup by static electricity.

Figure 10-4

(B1)x2 ø1.4x2mm

(A1)x2 ø1.4x2mm

(A1)x1 ø1.4x2mm

Bottom Lid

OPEN Lever

Top Cabinet

Center Cabinet A

Center Cabinet B

Push down the lever of center chassis outwards , and move the mechanism unit to remove it.

Precision Driver

(C1)x2

Remove the hook

(D3)x1 ø1.7x2.5mm

(D2)x3

Pull

Main PWB

(B2)x2

(D1)x1

(D2)x1

Pull

Put the fold on the connector, and apply with the felt. Sagging may result in contact with the sheet metal.

Felt

(D1)x*1 Flexible PWB for optical pickup

Mechanism Unit

OPEN

Note

Open or close the battery cover as shown below.

To open

T o close

1 2

Do not force open the battery cover too wide.

Do not raise the battery cover upward.

Slide the battery cover. Open it.

Raise the battery cover. Slide it to close.

MD-MT821/W

– 11 –

REMOVING AND REINSTALLING THE MAIN PARTS

Remove the mechanism according to the disassembling methods 1 to 6. (See Page 10.)

How to remove the spindle motor (See Fig. 11-1.)

1. Remove the solder joint (A1) x 1 of flexible PWB.

2. Remove the screws (A2) x 3 pcs., and remove the spindle motor.

Figure 11-5

Figure 11-1

Figure 11-2

Figure 11-3

How to reinstall the optical pickup unit (See Fig. 11-5.)

1. Remove the screw (E1) x 1 pc.

2. Slowly raise the optical pickup.

How to remove the magnetic head (See Fig. 11-4.)

1. Remove the screws (D1) x4 which connects the magnetic

head to the head relay flexible PWB, remove the spring washers (D2) x 2 and remove the soldering joints (D3) x 2.

Note:

Mount carefully so as not to damage the magnetic head. (If the gear is damaged, noise is caused.)

Figure 11-4

How to remove the lift motor (See Fig. 11-2.)

1. Remove the solder joint (B1) x 2 of lift motor lead wire.

2. Remove the screw (B2) x 1 pc., and remove the flexible PWB.

3. Remove the screw (B3) x 1 pc., and remove the lift motor.

Note:

Take care so that the motor gear is not damaged. (If the gear is damaged, noise is caused.)

How to remove the sled motor (See Fig. 11-3.)

1. Remove the stop washer (C1) x 1 pc., and remove the drive

gear (C2) x 1 pc.

2. Remove the screws (C3) x 2 pcs., and remove the sled

motor.

3. Remove the solder joints (C4) x 2 of flexible PWB.

Note:

Take care so that the motor gear is not damaged. (If the gear is damaged, noise is caused.)

(A2)x3 ø1.4x2.8mm

MD Mechanism

Spindle Motor

Mechanism Flexible PWB Solder joint (A1)x1

(B2)x1 ø1.4x1.5mm

(B3)x1 ø1.4x5.5mm

MD Mechanism

Remove the solder joint (B1)x2

Lift Motor

Stop Washer

(C1)x1

MD Mechanism

Sled Motor

(C3)x2 ø1.4x1.2mm

Drive Gear

(C2)x1

Mechanism Flexible PWB

Solder Joint (C4)x2

Solder joint (D3)x2

(D1)x1 ø1.4x1.5mm

(D1)x1 ø1.2x1.6mm

(D1)x2 ø1.4x2.2mm

Magnetic Head

MD Mechanism

Spring Washer (D2)x2

(E1)x1 ø1.7x3mm

Shft

Pickup Unit

MD Mechanism

MD-MT821/W

– 12 –

Entering the TEST mode

1. Setting at port (in standby state, disc-free state or power nonconnected state)

(1) Set the port as follows. TEST1 : "Low" TEST0 : "High" (2) Press the PLAY button in the standby state (it is allowed to insert the disc or to connect the power supply). (3) Test Mode STOP [ T E S T _ ]

2. Setting by special button operation (in standby state)

(1) Holding down the DISP button and ENTER button, press the PLAY button. (2) Normal mode setting initialization (BASS setting, VOL setting, etc.) *Since the unit is changed to the setting for production line inspection , be sure to set it to the default setting state in the following default setting procedure before returning it to the user. (3) Indication of microcomputer version for one second [ X X X X X X ]

(4) Whole LCD lighting for 2 seconds (5) Test Mode STOP [ T E S T _ ] *When the PLAY button is pressed during indication (3) and (4), the process proceeds to (5).

1 High reflection disc MMD-110 (TEAC Test MD) 88GMMD-110 2 Low reflection disc MMD-212 (TEAC Test MD) 88GMMD-212 3 Low reflection disc Recording minidisc UDSKM0001AFZZ

ADJUSTMENT

Test disc

MD adjustment needs two types of disc, namely recording disc (low reflection disc) and playback-only disc (high reflection disc).

Type

Test disc Parts No.

Note: Use the low reflection disc on which music has been recorded.

EEPROM version

Destination

Leaving the TEST mode

(1) Press the STOP button in the TEST mode stop state or version indicating state or whole LCD lighting state. (2) EEPROM rewrite-enable area updating, adjustment error setting . (3) Change to standby state

Test Mode

Microcomputer version

Shipping setting method

Holding down simultaneously the VOLUME-DOWN Button and PLAY Button of the set unit without disc, supply the power from the DC IN plug. After the indication "INIT" -> "BYE OK" disappears, release the power supply of DC IN.

1. AUTO 1 Mode • Perform preliminary automatic adjustment.

• If the combination of mechanism and pickup PWB has been changed, be sure to start from

AUTO1.

2. AUTO 2 Mode

• Perform ATT (attenuator) automatic adjustment.

• Perform continuous playback (error rate display, jump test)

3. TEST-PLAY Mode

• Continuous playback from the specified address is performed.

• 1 line, 10 lines or 384 lines manual jump is performed.

• C1 error rate display (pit section), ADIP error rate display (groove section)

• The temperature correction is performed only when servo start is performed, but the posture correction is not performed during continuous playback.

4. TEST-REC Mode

• Continuous record from the specified address is performed.

• Change of record laser output(servo gain is also changed according to laser output).

• The temperature correction is performed only when servo start is performed, but the posture correction is not performed during continuous recording.

5. MANUAL 1 Mode

• Temperature is displayed. (Updating in real time)

• Seeing the displayed adjustment value, perform

preliminary manual adjustment. (Error rate indication, jump test)

6. MANUAL 2 Mode

• Temperature is displayed. (Updating in real time)

• Seeing the displayed adjustment value perform manfully the preliminary adjustment.

(Error rate indication, jump test)

• Continuous playback is performed

(error rate display, jump test).

7. RESULT 1 Mode

• The value adjusted in AUTO1 or MANUAL1 is indicated.

• (Execution in servo "OFF" state").

8. RESULT 2 Mode

• The value adjusted in AUTO 2 or MANUAL 2 is indicated.

• Adjustment value is changed manually. (error rate display, jump test).

9. DIGITAL INPUT Mode

• Digital input information is displayed.

10. ERROR INFORMATION

• Error information is displayed.

Mode • Error information is initialized

11. NORMAL Mode

• The mode is changed from the TEST mode to the normal mode without adjustment.

• In the normal mode the internal operation mode, memory capacity, etc. areindicated.

• In the normal mode both temperature correction and posture correction are perfomed.

12. EEPROM Mode

• Factors of digital servo are changed manually. (Each servo is turned on individually.)

• Cut-off frequency of BASS1, BASS2 and BASS3 is selected manually.

• Temperature detection terminal voltage is measured, and the reference value is set.

• Defaults are selected and set.

• Setting of EEPROM protect area is updated. (In case of protect releasing)

13. INNER Mode

• Determine the position where the INNER switch is turned on. (only high reflection disc).

• The temperature correction is performed only when servo start is performed, but the posture correction is not performed.

MD-MT821/W

– 13 –

Operation in each TEST mode

1. AUTO1 Mode

• When the STOP button is pressed while the AUTO1 menu appears or during automatic adjustment, the mode changes to the TEST mode stop state. At this time the adjustment value is not output.

• Be sure to adjust, using the specified disc MMD-212.

At this time release the EEPROM (IC402) protection. (Refer to EEPROM write procedure.)

• Adjustment NG; Adjustment item out of range, focus ON failure, and adjustment error

• When the PLAY button is pressed while ADJ. OK is displayed, AUTO2 is executed.

2. AUTO2 Mode

• When the STOP button is pressed while the AUTO2 menu appears or during automatic adjustment, the mode changes to the TEST mode stop state. At this time the adjustment value is not output.

• Adjustment NG; Adjustment item out of range, and adjustment error.

• When the PLAY button is pressed while ADJ. OK is displayed,TEST_PLAY is executed.

3. MANUAL1 Mode

• Adjustment item to be made in AUTO1 mode is performed manually.

• When the VOL UP button is pressed during adjustment, the setting increases, and the new setting is output.

• If the VOL DOWN button is pressed during adjustment, the setting decreases and the new setting is output.

• If the VOL UP/DOWN button is held down, the setting changes continuously with 100 ms cycle.

*In this operation, the setting change is performed for each digit. The digit is changed by pressing the MODE button.

• If the setting is within the allowable range, the RANDOM display lights.

• When the STOP button is pressed during MANUAL1 MENU or measurement or adjustment, the state is changed to the TEST mode stop state.

4. MANUAL2 Mode

• Adjustment item to be made in AUTO2 mode is performed manually.

• When the VOL UP button is pressed during adjustment, the setting increases, and the new setting is output.

• If the VOL DOWN button is pressed during adjustment, the setting decreases and the new setting is output.

• If the VOL UP/DOWN button is held down, the setting changes continuously with 100 ms cycle.

*In this operation, the setting change is performed for each digit. The digit is changed by pressing the MODE button.

• If the setting is within the allowable range, the RANDOM display lights.

• When the STOP button is pressed during MANUAL2 MENU or measurement or adjustment, the state is changed to the TEST mode stop state.

• When the PLAY button is pressed in B-ATT set state, the mode is changed to the continuous playback mode.

• As for operation during continuous playback refer to "TEST-PLAY mode explanation".

5. RESULT1 Mode

• The measurement value and set value of adjustment items for AUTO1 and MANUAL 1 are displayed.

• If the VOL UP button is pressed during setting indication, the setting increases. If the VOL DOWN button is pressed, the setting reduces.

And then the new setting is stored in the RAM.

• When the VOL UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

*In this operation, the setting change is performed for each digit. The digit is changed by pressing the MODE button.

• If the STOP button is pressed during RESULT1 menu or measurement value indication or set value indication, the state is changed to the TEST mode STOP state.

6. RESULT2 Mode

• The measurement value and set value of adjustment items for AUTO2 and MANUAL 2 are displayed.

• If the VOL UP button is pressed during setting indication, the setting increases. If the VOL DOWN button is pressed, the setting reduces.

And then the new setting is stored in the RAM.

• When the VOL UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

*In this operation, the setting change is performed for each digit. The digit is changed by pressing the MODE button.

• If the STOP button is pressed during RESULT2 menu or measurement value indication or set value indication, the state is changed to the TEST mode STOP state.

7. TEST-PLAY Mode

• When the STOP button is pressed while the TEST-PLAY menu appears, or in TEST-PLAY or continuous playback mode, the mode changes to the TEST mode stop state.

• When the PLAY button is pressed while the TEST-PLAY menu appears,continuous playback is initiated from the current pickup position.

• Whenever the DISP button is pressed in the TEST-PLAY menu, the target address changes as follows.

0050 — 03C0 — 0700 — 08A0 — 0950— 0050 —

When the PLAY button is pressed while a target address is displayed, continuous playback is performed after searching that address.

• Each time the MODE button is pressed while the TEST-PLAY mode target address is displayed, the digit which is changed by pressing the SKIP UP/DOWN button is changed as follows.

005

0 — 0050 — 0050 — 0050 —

• When the SKIP UP button is pressed in the TEST-PLAY mode target address is displayed, the digit of address specified by the MODE button is set to +1h. (0 to F)

• When the SKIP DOWN button is pressed in the TEST-PLAY mode target address is displayed, the digit of address specified by the MODE button is set to -1h. (0 to F) * When the SKIP UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

• When the BASS button is pressed in the continuous playback mode, the number of jump lines changes as follows.

1 — 10 — 384 — 1

* After the number of jump lines is indicated for one second, the address indication is restored. [ T R _ ]

MD-MT821/W

– 14 –

• When the SKIP UP button is pressed in the continuous playback mode, the specified number of lines is jumped in the FWD direction.

• When the SKIP DOWN button is pressed in the continuous playback mode, the specified number of lines is jumped in the REV direction. * When the SKIP UP/DOWN button is held down, jump is repeated every approx. 100 ms.

•Whenever the DISP button is pressed in the continuous playback mode, the indication changes as follows. * Pre-mastered disc

Continuous playback (SUBQ address indication) [ S Q ]

|

Continuous playback (C1 error indication) [ C E ]

|

Continuous playback (SUBQ address indication) [ S Q ]

* Recordabl disk

Continuous playback (ADIP address indication) [ A P ]

|

Continuous playback (C1 error indication) [ C E ]

|

Continuous playback (ADIP error indication) [ A E ]

|

Continuous playback (ADIP address indication) [ A P ]

8. TEST-REC Mode

• When the STOP button is pressed while the TEST-REC menu appears, or in the TEST-REC mode or continuous record mode, the mode changes to the TEST mode stop state.

• When the PLAY button is pressed while the TEST-REC menu appears, the continuous record is initiated from the current pickup position.

• Whenever the DISP button is pressed in the TEST-REC menu, the target address changes as follows.

0032 — 03C0 — 0700 — 08A0 —0950 — 0032 —

When the PLAY button is pressed while a target address is displayed, continuous playback is performed after searching that address.

• Whenever the MODE button is pressed in the TEST-REC mode target address is displayed, the digit which is changed by the SKIP UP/

DOWN button changes as follows.

0032 — 0032 — 0032 — 0320 —

• When the SKIP UP button s pressed in the TEST-REC mode target address is displayed, the digit of address specified by the BASS button is set to +1h.(0 to F)

• When the SKIP DOWN button is pressed in the TEST-REC mode target address is displayed, the digit of address specified by the BASS button is set to -1h. (0 to F)

* When the SKIP UP/DOWN button is held down, the setting changes continuously, one cycle being 100 ms.

• When the VOL UP/DOWN button is pressed in the TEST-REC mode or continuous record mode, the laser record power changes. (Servo gain changes also according to record power.) * After the laser record power is indicated for one second, the address indication is restored.

[ R P W _ ]

• : Address

• : Laser power cord

• Operation is disabled if the premastered disc or disc is in miserase-protected state.

9. NORMAL Mode

• When the STOP button is pressed while the NORMAL menu appears, the mode changes to the TEST mode stop state.

• Indication during operation Indication of memory capacity on main unit LCD [ ] + Level meter

: Internal mode : Address (Cluster section) : Address (Sector section)

• Selection of sound volume, BASS, etc. is possible (without indication)

• Recording is also possible.

• If the STOP button is pressed during operation in the NORMAL mode, the NORMAL mode is canceled, and the power is turned off.

10. Digital input display Mode (Din Mon)

• When the STOP button is pressed while the digital input indication menu appears or during digital input information indication, the mode changes to the TEST mode stop state.

• In case of analog input or digital input unlocking the indication data is _.

11. Error data display Mode

• Reversing when SKIP DOWN button is pressed

• When the STOP button is pressed while the error data indication menu appears or during error data indication, the mode changes to the TEST mode stop state.

• Error data 0 is the latest error.

• Error which occurred in the TEST mode is also stored in the memory.

• When the DISP button is pressed while the error data indication menu appears, the error data is initialized. [ C L E A R _ ]

•

: Error Code

Explanation of error history code

12h : RF side FG, TG, and TCRS adjustment termination failure 13h : Adjustment servo retraction excessive retrial 16h : C. IN detection time-over 17h : A, B, E, F, and TCRSO offset measurement value out of

tolerable range

21h : Focus retraction completion allowable time-over 23h : Track search completion allowable time-over 24h : Disc linear speed measurement failure 32h : P-TOC read failure 42h : U-TOC read failure

MD-MT821/W

– 15 –

EEPROM (IC402) writing procedure

1. Procedure to replace EEPROM and write initial value of microcomputer in EEPROM

(1) Replace EEPROM. (2) Deprive EEPROM of protection (connect the pins 8 and 6 of IC402). (3) Refer to the latest EEPROM data list. (4) Press the Display/Lower-case Character button, Enter/Synchro button and Play/Pause button to start the test mode. (5) Version display

[ V e r . ]

EEPROM version (C ~ Z)

Microcomputer ROM version (6) The whole LCD lights. (7) Test mode stop state.

[ T E S T ]

(8) Press the "BASS" button, and press twice the "SKIP DOWN" button.

[ E E P R O M ]

(9) Perform the operation to display "EEPROM SETTING MODE CHART", compare the EEPROM DATA LIST with the display,

and set according to the EEPROM DATA LIST with the VOL UP or VOL DOWN key.

(10)

Set the temperature reference. (Refer to the Temperature Reference Setting Method.)

(11)

Set according to the EEPROM DATA LIST.

(12)

Press the Stop button.

[ T E S T ]

(13)

Press the Stop button.

(14)

After data is written in EEPROM, turn off power .

(15)

Restore protection of EEPROM (Disconnect connection made in Step (2) above).

2. Temperature reference setting method

[1] Measurement, calculation and setting procedure

(1) Set the TEST mode.

• Set TEST 1, 0 = '01', and turn on power (or set PLAY ON in standby state). (2) Start the EEPROM mode 'Temp' menu.

• Key operation in order of BASS, SKIP-DOWN x 2 times, PLAY, PLAY in the test mode STOP state.

• 'TM$$%%' is displayed. ($$= Temperature code, %% = Temperature reference) (3) Once press SKIP-UP, and determine the displayed microcomputer TEMP input AD value.

• 'TPin##' is displayed. (## = TEMP input AD value) (4) At the ambient temperature, determine the temperature corrected value from the temperature measurement value

correction table.

(5) Determine the temperature reference, using the following formula.

• Temperature reference = Microcomputer TEMP input AD value + Temperature corrected value (6) Set the temperature reference value by button operation , and check whether the temperature code indication corresponds to "Temperature

Code Identification Table".

[2] Temperature measurement value correction table

Ambient

temperature

Temperature

correction

+ 9oC ~ +11oC - 05h + 10.0oC +12oC ~ +14oC - 04h + 12.7oC +15oC ~ +16oC - 03h + 15.4oC +17oC ~ +19oC - 02h + 18.2oC +20oC ~ +22oC - 01h + 20.9oC +23oC ~ +24oC ± 00h + 23.6oC +25oC ~ +27oC + 01h + 26.3oC +28oC ~ +30oC + 02h + 29.0oC +31oC ~ +33oC + 03h + 31.8oC

12. INNER Mode

• when the STOP button is pressed on the INNER menu (SQ______ ), the state is changed to the TEST mode STOP state.

• : Address

Center

temperature

Ambient

temperature

Temperature

correction

Center

temperature

- 9oC ~ +10oC 08h + 0.5oC

+ 3oC ~ +21oC 07h + 12.5oC +15oC ~ +33oC 06h + 23.6oC +26oC ~ +43oC 05h + 35.0oC

44h : U-TOC write data write disabled/read check error 52h : SD write data write disabled 71h : Pickup position initialization time-over 72h : EEPROM data read check sum error 73h : Record head drive disabled (by EJECT lever) 82h : Power overvoltage detection 91h : Ambient temperature is higher that the allowable temperature.

MD-MT821/W

– 16 –

EEPROM DATA LIST (EEPROM version d)

TEMP setting

Item display Set values

T M _ _ Calculate values

ADJ. SET setting

Item display Set values

C O K _ A 0 H F A T _ C 0 H T A T _ 3 E H C A T _ 2 0 H F A B _ E 0 H

BASS setting

Item display Set values

B S 1 _ 0 0 H B S 2 _ 2 D H B S 3 _ 4 B H

Sled setting

Item display Set values

S L G _ 8 D H S L 2 _ 2 0 H S L M _ 6 F H S L V _ 8 7 H S K k _ 4 8 H S K t _ 4 8 H S K m _ 4 D H W T m _ 2 4 H M V 1 _ 4 A H M V 2 _ A A H S R V _ 0 0 H

EQ. SET setting

Item display Set values

H Q 1 _ 9 0 H H Q 2 _ 9 0 H H S G _ 1 1 H H S O _ F D H L Q 1 _ 9 0 H L Q 2 _ 9 0 H L S G _ 1 1 H L S O _ 0 0 H G Q 1 _ 9 8 H G Q 2 _ 8 4 H G S G _ 1 1 H F L p _ 0 9 H

Control setting

Item display Set values

C T 0 _ 0 3 H C T 1 _ 1 1 H C T 2 _ 4 0 H C T 3 _ 3 0 H R C 0 _ C 0 H R C 1 _ F E H S Y C _ A 6 H P W C _ 1 2 H P W L _ 2 6 H D R 1 _ 0 9 H D R 2 _ 8 5 H I N 1 _ 5 4 H I N 2 _ 9 D H I N H _ 6 4 H D R H _ 7 4 H P L E _ 9 6 H R C E _ 9 4 H E L T _ 7 0 H S L T _ 4 4 H S P M _ 0 0 H M S L _ 0 0 H U S 0 _ 0 0 H U S 1 _ 0 0 H U S 2 _ 0 0 H

Item display Set values

F G _ _ 6 3 H F F 1 _ 7 0 H F F 2 _ E 8 H F Z H _ E D H F L n _ 0 A H D J G _ 1 4 H F L V _ 2 0 H W T f _ 2 0 H F S S _ A A H

Fucus setting

Tracking setting

Item display Set values

T G _ _ 2 6 H T F 1 _ 7 0 H T F 2 _ E 0 H T F S _ 0 0 H T B o _ 2 B H T B t _ 1 4 H T K o _ 2 B H T K t _ 1 2 H T D o _ 6 7 H T D t _ 3 4 H T G R _ 0 0 H S C t _ 4 0 H S C m _ 5 3 H C L p _ 1 8 H C L r _ 2 8 H J P I _ 0 0 H K 1 0 _ 6 5 H

Item display Set values

S P G _ 1 4 H S P i _ A A H S P m _ 7 9 H S P o _ 4 F H S P 1 _ 1 0 H S P 2 _ 6 0 H S P 3 _ F 2 H S P 4 _ F 2 H S P 5 _ 1 0 H S P D _ 4 8 H S P K _ 6 B H

Spindle setting

MD-MT821/W

– 17 –

: Test Mode STOP

: Pre-auto adjustment menu

: ATT auto adjustment menu

: Continuous record menu

: EEPROM setting menu

: INNER switch position measurement menu

BASS

T E S T

Slide external

periphery move

Slide internal

periphery move

Tset Mode Menu

Test Mode Change Chart

A U T O 1

A U T O 2

SKIP UP SKIP DOWN

SKIP DOWN

SKIP UP SKIP DOWN

T R E C

SKIP UP SKIP DOWN

: Continuous playback menu

T P L A Y

SKIP UP SKIP DOWN

: Digital input signal monitor menu

D i n M o n

SKIP UP SKIP DOWN

E E P R O M

SKIP UP SKIP DOWN

I N N E R

SKIP UP

SKIP DOWN

SKIP UP

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [PLAY] button operation is performed in the specific menu, the operation of this

menu is executed.

: Pre-adjustment value check menu

R S L T 1

: ATT adjustment value check menu

R S L T 2

: Pre-manual adjustment menu

M A N U 1

: ATT manual adjustment menu

M A N U 2

: Error history display menu

E D A T A

: Test mode normal playback menu

N O R M A L

: Preautomatic Adjustment menu

: Preadjustment error (adjustment value output)

: During preadjustment adjustment

Adjustment error

Normal end

: Preadjustment normal end (adjustment value output)

: During ATT automatic adjustment

PLAY

A U T O 1

Preautomatic Adjustment

A D J . O K

A D J . N G

A T 2

A T 1

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* " " represent the adjustment number as follows.

0 0 : Innermost periphery move

0 2 : ABEF offset tentative measurement

0 4 : RF side focus gain coarse adjustment

0 5 : Focus ATT tentative setting

0 6 : RF side bit section tracking gain adjustment

0 7 : COUT level setting for pit section adjustment

0 8 : External periphery move

0 9 : RF side groove section tracking gain adjustment

1 0 : COUT level setting for groove section adjustment

1 1 : RF side TCRS gain adjustment

1 2 : Tracking ATT initial setting

1 3 : RF side focus gain minor adjustment

1 4 : Focus ATT initial setting

1 5 : S gain "High" ABEF offset measurement

1 6 : TCRS offset measurement

1 7 : S gain "Low" ABEF offset measurement

MD-MT821/W

– 18 –

: ATT Autoadjustment menu

: ATT adjustment error (adjustment value output)

: During ATT autoadjustment

Adjustment error

Normal end

: ATT adjustment normal end (adjustment value output)

: Continuous playback (high reflection)

: Continuous playback (low reflection)

PLAY

A U T O 2

ATT Auto Adjustment

A D J . O K

A D J . N G

S Q # # # #

A P # # # #

A T 2

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* " " represent the adjustment number as follows.

0 0 : Innermost periphery move

0 3 : Pit section tracking ATT setting

0 4 : Pit section focus ATT setting

0 6 : External periphery move (low reflection only)

0 7 : TCRS ATT setting (low reflection only)

0 8 : Groove section tracking ATT setting (low reflection only)

0 9 : Groove section focus ATT setting (low reflection only)

: Pre-Manual Adjustment menu

: Temperature code display

$ $ : Temperature code

: A signal offset (AINO) tentative measurement

: Measurement value

: B signal offset (BINO) tentative measurement

: Measurement value

: E signal offset (EINO) tentative measurement

: Measurement value

: F signal offset (FINO) tentative measurement

: Measurement value

: Laser ON (Play Power)

: RF side focus gain coarse adjustment

: Gain setting

: A-ATT (focus) tentative setting

: ATT setting

: B-ATT (focus) tentative setting

: ATT setting

: RF side pit section tracking gain adjustment

: Gain setting

: Pit section adjustment COUT level setting

: COUT level setting

RF side groove section tracking gain adjustment

: Gain setting

: Groove section adjustment COUT level setting

: COUT level setting

: RF side TCRS gain adjustment

: Gain setting

: E-ATT (tracking) initial setting

: ATT setting

: F-ATT (tracking) initial setting

: ATT setting

PLAY

M A N U 1

Pre-Manual Adjustment

T M P $ $

A h

SKIP UP SKIP DOWN

B h

SKIP UP SKIP DOWN

E h

SKIP UP SKIP DOWN

F h

SKIP UP SKIP DOWN

L O N P

SKIP UP SKIP DOWN

R F g

SKIP UP SKIP DOWN

S a

SKIP UP SKIP DOWN

S b

SKIP UP SKIP DOWN

P T G

SKIP UP SKIP DOWN

P C H

SKIP UP SKIP DOWN

G T G

SKIP UP SKIP DOWN

G C H

SKIP UP SKIP DOWN

R C G

SKIP UP SKIP DOWN

S E

SKIP UP SKIP DOWN

S F

SKIP UP SKIP DOWN

Continued to

the next page

SKIP UP SKIP DOWN

MD-MT821/W

– 19 –

: RF side focus gain minor adjustment

: Gain setting

: A-ATT (focus) initial setting

: ATT setting

: B-ATT (focus) initial setting

: ATT setting

: S gain "High" A signal offset (AINO) measurement

: Measurement value

: S gain "High" B signal offset (BINO) measurement

: Measurement value

: S gain "High" E signal offset (EINO) measurement

: Measurement value

: S gain "High" F signal offset (FINO) measurement

: Measurement value

TCRS signal offset (TCRSO) measurement

: ATT setting

: S gain "Low" A signal offset (AINO) measurement

: Measurement value

: S gain "Low" B signal offset (BINO) measurement

: Measurement value

: S gain "Low" E signal offset (EINO) measurement

: Measurement value

: S gain "Low" F signal offset (FINO) measurement

: Measurement value

Continued from the

preceding page

R F G

SKIP UP SKIP DOWN

S A

SKIP UP SKIP DOWN

S B

SKIP UP SKIP DOWN

A H

SKIP UP SKIP DOWN

B H

SKIP UP SKIP DOWN

E H

SKIP UP SKIP DOWN

F H

SKIP UP SKIP DOWN

T H

SKIP UP SKIP DOWN

A L

SKIP UP SKIP DOWN

B L

SKIP UP SKIP DOWN

E L

SKIP UP SKIP DOWN

F L

SKIP UP SKIP DOWN

: ATT manual adjustment menu

: Temperature code display

$ $ : Temperature code

: Laser ON (Play Power)

: Pit section E-ATT (tracking) setting

: ATT setting

: Pit section F-ATT (tracking) setting

: ATT setting

: High reflection: A-ATT (focus) setting

: Low reflection: A-ATT (focus) setting

: ATT setting

: TCRS ATT setting

: ATT setting

:Groove section E-ATT (tracking) setting

: ATT setting

:Groove section F-ATT (tracking) setting

: ATT setting

: Low reflection: A-ATT (focus) setting

: ATT setting

: Low reflection: B-ATT (focus) setting

: ATT setting

PLAY

M A N U 2

ATT Manual Adjustment

T M P $ $

L O N P

SKIP UP SKIP DOWN

P E

SKIP UP SKIP DOWN

P F

SKIP UP SKIP DOWN

H A

L a

SKIP UP SKIP DOWN

: High reflection: B-ATT (focus) setting

: Low reflection: B-ATT (focus) setting

: ATT setting

H B

L b

SKIP UP SKIP DOWN

G C

SKIP UP SKIP DOWN

G E

SKIP UP SKIP DOWN

G F

SKIP UP SKIP DOWN

L A

SKIP UP SKIP DOWN

L B

SKIP UP SKIP DOWN

MD-MT821/W

– 20 –

: Pre-Adjustment Value Check menu

: S gain "High" A signal offset measurement value (setting)

: S gain "High" B signal offset measurement value (setting)

: S gain "High" E signal offset measurement value (setting)

: S gain "High" F signal offset measurement value (setting)

: S gain "Low" A signal offset measurement value (setting)

: S gain "Low" B signal offset measurement value (setting)

: S gain "Low" E signal offset measurement value (setting)

: S gain "Low" F signal offset measurement value (setting)

: TCRS signal offset measurement value

: RF side pit section tracking gain setting

: RF side groove section tracking gain setting

: RF side TCRS gain setting

: RF side focus gain setting

: Pit section adjustment COUT level setting

: Groove section adjustment COUT level setting

: A-ATT (focus) initial setting

PLAY

R S L T 1

Pre-Adjustment Value Check

A H

B H

SKIP UP SKIP DOWN

E H

SKIP UP SKIP DOWN

F H

SKIP UP SKIP DOWN

A L

SKIP UP SKIP DOWN

B L

SKIP UP SKIP DOWN

E L

SKIP UP SKIP DOWN

F L

SKIP UP SKIP DOWN

T H

SKIP UP SKIP DOWN

P T G

SKIP UP SKIP DOWN

G T G

SKIP UP SKIP DOWN

R C G

SKIP UP SKIP DOWN

R F G

SKIP UP SKIP DOWN

P C H

SKIP UP SKIP DOWN

G C H

SKIP UP SKIP DOWN

S A

SKIP UP SKIP DOWN

Continued to

the next

SKIP UP SKIP DOWN

: B-ATT (focus) initial setting

: E-ATT (tracking) initial setting

: F-ATT (tracking) initial setting

Continued from

the preceding

S B

SKIP UP SKIP DOWN

S E

SKIP UP SKIP DOWN

S F

SKIP UP SKIP DOWN

: ATT Setting Check menu

: Pit section E-ATT (tracking) setting

: Pit section F-ATT (tracking) setting

: Groove section E-ATT (tracking) setting

: Groove section F-ATT (tracking) setting

: High-reflection A-ATT (focus) setting

: High-reflection B-ATT (focus) setting

: Low-reflection A-ATT (focus) setting

: Low-reflection B-ATT (focus) setting

: TCRS-ATT setting

PLAY

R S L T 2

ATT Setting Check

P E

P F

SKIP UP SKIP DOWN

G E

SKIP UP SKIP DOWN

G F

SKIP UP SKIP DOWN

H A

SKIP UP SKIP DOWN

H B

SKIP UP SKIP DOWN

L A

SKIP UP SKIP DOWN

L B

SKIP UP SKIP DOWN

G C

SKIP UP SKIP DOWN

MD-MT821/W

– 21 –

: Continuous playback menu

: Continuous playback (pit section)

: Continuous playback (groove section)

# # # # : Address

: Continuous playback (pit section)

: Continuous playback (groove section)

# # # # : Address

PLAY

T P L A Y

Continuous Playback

S Q # # # #

A P # # # #

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* In the start address set state the start address changes as follows when the [DISP] button is pressed.

0 0 3 2

H

(initial value) 0 3 C 0

H

0 7 0 0

H

0 8 A 0

H

A d 0 0 3 2

A d 0 3 C 0

DISP

A d 0 7 0 0

DISP

A d 0 8 A 0

* In the start address setting state the start address change digit changes when the [BASS] button is pressed.

1st digit (initial value) 2nd digit 3rd digit

A d 0 0 3 2

MODE

A d 0 0 3 2

MODE

* In the continuous playback state the number of jump lines changes as follows shown

the [BASS] button is pressed.

1 (initial value) 10 384

1 T R

1 0 T R

BASS

3 8 4 T R

BASS

• Continuous playback from current pickup position

: Continuous playback menu

: Start address setting

DISP

T P L A Y

A d 0 0 3 2

PLAY

S Q # # # #

A P # # # #

• Continuous playback from any address

* In the start address set state the value of selection digit changes in the range of "0h to Fh"

when the [SKIP UP/DOWN] button is pressed

* When the [SKIP UP] button is pressed in the continued playback mode, jump of specified

number of lines occurs in the external periphery direction.

If the key is held down jump occurs continuously (100 ms cycle).

* When the [SKIP DOWN] button is pressed in the continuous playback mode, jump of

specified number of lines occurs in the internal periphery direction.

If the key is held down, jump occurs continuously (100 ms cycle).

0 9 5 0

H

: Continuous record menu

PLAY

T R E C

Continuous Rrecord

A P # # # #

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* In the start address set state the start address changes as follows when the [DISP] button is pressed.

• Continuous record from the current pickup position

: Continuous record menu

: Start address setting

: Continuous record

# # # #: Address

: Continuous record

# # # #: Address

PLAY

T R E C

A d 0 0 3 2

PLAY

A P # # # #

• Continuous record playback from any address

A d 0 0 3 2

0 0 3 2

H

(initial value) 0 3 C 0

H

0 7 0 0

H

0 8 A 0

H

A d 0 3 c 0

DISP

A d 0 7 0 0

DISP DISP

DISP

A d 0 8 A 0

* In the start address setting state the start address change digit changes when the [BASS] button is pressed.

* In the start address set state the value of selection digit changes in the range of 0h to Fh when

the [SKIP UP/DOWN] button is pressed.

* In the continuous record state and start address set state the record laser power changes in the

range of "0h to Fh" when the [VOL UP/DOWN] button is pressed.

A d 0 0 3 2

1st digit (initial value) 2nd digit 3rd digit

A d 0 0 3 2

MODE

A d 0 0 3 2

MODE

MD-MT821/W

– 22 –

: INNER switch position measurement menu

: Continuous playback (pit section)

# # # # : Address

PLAY

I N N E R

Inner Switch Position Measurement

S Q # # # #

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

: TEST mode normal playback menu

: Continuous playback

@@@@@@: Mode and address display

PLAY

N O R M A L

Test Mode Normal Playback

@@@@@@

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the NORMAL mode is canceled, the power is turned off.

: Digital input single monitor menu

: FS code, C bit data display

: Address

: Control code

: Category code

PLAY

D i n M o n

Digital Input Signal Monitor

C

: U bit 1 data display

: TNO

: INDEX

SKIP UP

U 1

SKIP UP

SKIP DOWN

: U bit 2 data display

: TIME (min.)

: TIME (sec.)

U 2

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

: Error history display menu

: Error history 0 display

§ § : Error code

: Error history 1 display

§ § : Error code

: Error history 2 display

§ § : Error code

: Error history 3 display

§ § : Error code

: Error history 4 display

§ § : Error code

: Error history 5 display

§ § : Error code

: Error history 6 display

§ § : Error code

: Error history 7 display

§ § : Error code

: Error history 8 display

§ § : Error code

: Error history 9 display

§ § : Error code

PLAY

E D A T A

Error History Display

E 0 § §

E 1 § §

: Error history display menu

: Error history clear

PLAY

E D A T A

C L E A R

SKIP UP SKIP DOWN

E 2 § §

SKIP UP SKIP DOWN

E 3 § §

SKIP UP SKIP DOWN

E 4 § §

SKIP UP SKIP DOWN

E 5 § §

SKIP UP SKIP DOWN

E 6 § §

SKIP UP SKIP DOWN

E 7 § §

SKIP UP SKIP DOWN

E 8 § §

SKIP UP SKIP DOWN

E 9 § §

SKIP UP SKIP DOWN

• Error history clear

• Error history display

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

MD-MT821/W

– 23 –

: EEPROM setting menu

: Focus setting menu

: Spin setting menu

: Tracking setting menu

: Sled setting menu

: BASS setting menu

: TEMP setting menu

: Adjustment setting menu

: Digital EQ setting menu

: Control setting menu

PLAY

E E P R O M

EEPROM Setting

F o c u s

S p i n

SKIP UP SKIP DOWN

T r a c k

SKIP UP SKIP DOWN

S l e d

SKIP UP SKIP DOWN

B a s s

SKIP UP SKIP DOWN

T E M P

SKIP UP SKIP DOWN

A D J S E T

SKIP UP SKIP DOWN

D E Q S E T

SKIP UP SKIP DOWN

C T R L

SKIP UP SKIP DOWN

SKIP UP

SKIP DOWN

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [PLAY] button operation is performed in the specific state, the specific setting menu is set.

: BASS setting menu

PLAY

B a s s

BASS Setting

B S 1

B S 2

SKIP UP SKIP DOWN

B S 3

SKIP UP SKIP DOWN

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] button operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific state the setting changes in the range of "00h to FFh" when the

[VOL UP/DOWN] button is pressed.

(The upper limit varies depending on the items)

* When the [MODE] button is pressed in each state, the set digit is changed.

: Focus setting menu

PLAY

F o c u s

Focus Setting

F G

F F 1

SKIP UP SKIP DOWN

F F 2

SKIP UP SKIP DOWN

F Z H

SKIP UP SKIP DOWN

F L n

SKIP UP SKIP DOWN

D J G

SKIP UP SKIP DOWN

F L V

W T f

SKIP UP SKIP DOWN

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] button operation is performed in the specific state, the menu changes to "TEMP SETTING menu".

* In specific state the setting changed in the range of "00h to FFh" when the [VOL UP/DOWN] button is pressed.

(The upper limit varies depending on the items)

* When the [MODE] button is pressed in each state, the set digit is changed.

F S S

SKIP UP SKIP DOWN

MD-MT821/W

– 24 –

: Tracking setting menu

PLAY

T r a c k

Tracking Setting

T G

T F 1

SKIP UP SKIP DOWN

T F 2

SKIP UP SKIP DOWN

T F S

SKIP UP SKIP DOWN

T B o

SKIP UP SKIP DOWN

T B t

SKIP UP SKIP DOWN

T K o

SKIP UP SKIP DOWN

T K t

SKIP UP SKIP DOWN

T D o

SKIP UP SKIP DOWN

T D t

SKIP UP SKIP DOWN

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] button operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific state the setting changes in the range of "00h to FFh" when the [VOL UP/DOWN]

button is pressed. (The upper limit varies depending on the items)

T G R

SKIP UP SKIP DOWN

S C t

SKIP UP SKIP DOWN

S C m

SKIP UP SKIP DOWN

C L p

SKIP UP SKIP DOWN

C L r

SKIP UP SKIP DOWN

J P I

SKIP UP SKIP DOWN

K 1 0

SKIP UP SKIP DOWN

: Spin setting menu

PLAY

S p i n

Spin Setting

S P G

S P i

SKIP UP SKIP DOWN

S P m

SKIP UP SKIP DOWN

S P o

SKIP UP SKIP DOWN

S P 1

SKIP UP SKIP DOWN

S P 2

SKIP UP SKIP DOWN

S P 3

SKIP UP SKIP DOWN

S P 4

SKIP UP SKIP DOWN

S P 5

SKIP UP SKIP DOWN

S P D

SKIP UP SKIP DOWN

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] button operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In specific state the setting changed in the range of "00h to FFh" when the

[VOL UP/DOWN] button is pressed.

(The upper limit varies depending on the items)

S P K

SKIP UP SKIP DOWN

MD-MT821/W

– 25 –

: Slide setting menu

PLAY

S l e d

Sled Setting

S L G

S L 2

SKIP UP SKIP DOWN

S L M

SKIP UP SKIP DOWN

S L V

SKIP UP SKIP DOWN

S K k

SKIP UP SKIP DOWN

S K t

SKIP UP SKIP DOWN

S K m

SKIP UP SKIP DOWN

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] button operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific state the setting changes in the range of "00h to FFh" when the

[VOL UP/DOWN] button is pressed.

(The upper limit varies depending on the items)

* When the [MODE] button is pressed in each state, the set digit is changed.

W T m

SKIP UP SKIP DOWN

M V 1

SKIP UP SKIP DOWN

M V 2

SKIP UP SKIP DOWN

S R V

SKIP UP SKIP DOWN

: Temp setting menu

: TEMP reference

: Reference

§ § : Temperature code

: TEMP A/D input value

: Measurement value

PLAY

T e m p

TEMP Setting

T M § §

T p i n

SKIP UP SKIP DOWN

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] button operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific state the setting changes in the range of "00h to FFh" when the

[VOL UP/DOWN] button is pressed.

* When the [MODE] button is pressed in each state, the set digit is changed.

: Adjustment setting menu

PLAY

A D J S E T

Adjustment Setting

C O K

F A T

SKIP UP SKIP DOWN

T A T

SKIP UP SKIP DOWN

C A T

SKIP UP SKIP DOWN

F A B

SKIP UP SKIP DOWN

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] button operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific setting display state the setting change digit changes when the [P-MODE]

button is pressed.

1st digit (initial value) 2nd digit

P-MODE

* In the specific state the setting changes in the range of "0h to Fh" when the [VOL UP/DOWN]

button is pressed.

* When the [MODE] button is pressed in each state, the set digit is changed.

MD-MT821/W

– 26 –

: Digital EQ setting menu

PLAY

D E Q S E T

Digital EQ Setting

H Q 1

H Q 2

SKIP UP SKIP DOWN

H S G

SKIP UP SKIP DOWN

H S O

SKIP UP SKIP DOWN

L Q 1

SKIP UP SKIP DOWN

L Q 2

SKIP UP SKIP DOWN

L S G

SKIP UP SKIP DOWN

L S O

SKIP UP SKIP DOWN

G Q 1

SKIP UP SKIP DOWN

F L p

SKIP UP SKIP DOWN

G Q 2

SKIP UP SKIP DOWN

G S G

SKIP UP SKIP DOWN

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] button operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific setting display state the setting change digit changes

when the [P-MODE] button is pressed.

1st digit (initial value) 2nd digit

P-MODE

* In the specific state the setting changes in the range of "0h to Fh" when the [VOL UP/DOWN]

button is pressed.

* When the [MODE] button is pressed in each state, the set digit is changed.

: Control setting menu

PLAY

C T R L

Control Setting

C T 0

C T 1

SKIP UP SKIP DOWN

C T 2

SKIP UP SKIP DOWN

C T 3

SKIP UP SKIP DOWN

R C 0

SKIP UP SKIP DOWN

R C 1

SKIP UP SKIP DOWN

S Y C

SKIP UP SKIP DOWN

P W C

SKIP UP SKIP DOWN

P W L

SKIP UP SKIP DOWN

D R 1

SKIP UP SKIP DOWN

D R 2

SKIP UP SKIP DOWN

I N 1

SKIP UP SKIP DOWN

I N 2

SKIP UP SKIP DOWN

I N H

SKIP UP SKIP DOWN

Continued to

the next page

SKIP UP SKIP DOWN

MD-MT821/W

– 27 –

Continued from

the preceding page

D R H

SKIP UP SKIP DOWN

P L E

SKIP UP SKIP DOWN

R C E

E L T

S L T

SKIP UP SKIP DOWN

S P M

SKIP UP SKIP DOWN

M S L

U S 0

SKIP UP SKIP DOWN

U S 1

U S 2

* When the [STOP] button is pressed in specific menu, the "TEST MODE STOP" state is set.

* When the [DISP] button operation is performed in the specific state, the menu changes to

"TEMP SETTING menu".

* In the specific setting display state the setting change digit changes when the [P-MODE]

button is pressed.

1st digit (initial value) 2nd digit

P-MODE

* In the specific state the setting changes in the range of "0h to Fh" when the

[VOL UP/DOWN] button is pressed.

* When the [MODE] button is pressed in each state, the set digit is changed.

MD-MT821/W

– 28 –

SW401 EJECT OFF—ON SW402 HOLD OFF—ON SW403 DISC IN OFF—ON SW902 DISC PROTECT OFF—ON

NOTES ON SCHEMATIC DIAGRAM

• Resistor: To differentiate the units of resistors, such symbol as K and M are used: the symbol K means 1000 ohm and the symbol M means 1000 kohm and the resistor without any symbol is ohm-type resistor. Besides, the one with “Fusible” is a fuse type.

• Capacitor: To indicate the unit of capacitor, a symbol P is used: this symbol P means micro-micro-farad and the unit of the capacitor without such a symbol is microfarad. As to electrolytic capacitor, the expression “capacitance/withstand voltage” is used. (CH), (TH), (RH), (UJ): Temperature compensation (ML): Mylar type

• The indicated voltage in each section is the one measured by Digital Multimeter between such a section and the chassis with no signal given.

• Parts marked with “ ” ( ) are important for maintaining the safety of the set. Be sure to replace these parts with specified ones for maintaining the safety and performance of the set.

POSITION

REF. NO

DESCRIPTION

Figure 28 TYPES OF TRANSISTOR AND DIODE

MA793 SB0209CP

2SA17457 2SC4213 B RN1104 RN1444 A

TOP

VIEW

TOP VIEW

F10J2E SB10015 C

TOP VIEW

B

(G)

(3)

E

(S)

1

C

(D)

(2)

1SS361

TOP VIEW

1SS360

TOP VIEW

SBE803 2SA1873 GR

TOP VIEW

MD-MT821/W

– 29 –

Figure 29 BLOCK DIAGRAM

IC651

MOTOR DRIVER

LB1930M

VCC

IC351

HEAD DRIVER

74ACT02T

VCC

@

VEE

BATTERY CASE

(BOOSTER CIRCUIT

BUILT-IN)

RECHARGEABLE

BATTERY

M903

LIFT

MOTOR

SERIES

REGULATOR

IC830

IR3M12N

DC/DC

CONVERTER

IC501

AD/DA CONVERTER

AK4519VF

M902

SLED

MOTOR

IC101

RF SIGNAL

PROCESSOR

IR3R55

SERIES

REGULATOR

SERIES

REGULATOR

IC401

SYSTEM

MICROCOMPUTER

IX2792AF

RIPPLE

FILTER

VCC

@

VEE

4.5V REGULATOR

(ON/OFF)

OPIC

LASER

PICK

HEAD

M901

SPINDLE

MOTOR

IC201

ENDEC LSI

LR37811

+2.7V

+2.5V

T F

+2.5V

+2.7V

VDD

+2.0V

+2.7V

+2.5V

–2.5V

AVCC

+2.5V

+6~8V

+2.7V

J703

HEAD-

PHONES

LINE

J703

REMOTE

CONTROL

OVER VOLTAGE

REVERSE-CONNECTION

PROTECTION CIRCUIT

J801

DC JACK

(4~5.5V)

(2.9~4.1V)

(3.4V)

VCC

+2.35V

DISPLAY UNIT

OPERATION UNIT

IC901

3-PHASE BRUSH

LEESS DRIVER

BA6966FV

IC703

AUDIO AMP

IR3R54N

IC701

AUDIO AMP

IR3R54N

IC601

PWM DRIVER

17A39TD

VMVCC

EEPROM

+4.5V

VCC

VS

IC202

16BIT D-RAM

+2.5

+4.5V

OPTICAL IN

UNIT

OPTICAL IN

J701

LINE IN

J702

MIC IN

(READY FOR

PLUG/IN

POWER)

SERIES

REGULATOR

1,6

19,20

17

16

13

24,26

29,31

6,8

5,9,10,14

23,27,28,32

13,14

24,42

40

3

26-30,

32-37,

39-46

2-5,

7-11,

14-23

14

8,11

4

1

7,9 3,4

57,66

74

12

6

19

5

20 17

20

17

10

6

22,24

19

Q721

8

23

1,13

1-2

35

2,15-17,

19-22

1-3

14-16

69,

83,

84

9,

10,

13

82 74

2

17-24

50

4

5

20

3

4

+4.7V

8

52,53

1,12

+2.7V

82-84,86,

89-100

62

3

2

+2.5V

1,2,23,24

1,5

18,238

(UP/DOWN)

(DOWN)

19,20

NC

SW402

HOLD

SW902

DISC

PROTECT

55

4

SW401

EJECT

SW403

DISC IN

7

97

73

5

PLAYBACK SIGNAL

RECORD SIGNAL

+B

IC202 IX2723AF Serrial 903xxxxx

IX2735AF Serrial 904xxxxx~

MD-MT821/W

– 30 –

A

B

C

D

E

F

G

H

1

23456

Figure 30 SCHEMATIC DIAGRAM (1/4)

P30

P31 P32

• NOTES ON SCHEMATIC DIAGRAM can be found on page 28.

OPTICAL PICKUP UNIT

16

R422

100K

L204

R207

680

18

15

14

13

D351

SBE803

5

4 3

2 1

TP602

R920

100K

Q901

RN1104

R361

15

C361

0.039

C351

18P

(CH)

IC354

HAT2050T

FEX 2

PACKAGE IC

IC401

IX2792AF

SYSTEM

MICROCOMPUTER

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

TP657

TP351

R351

5.6

C357

0.1

IC351

74ACT02T

HEAD DRIVER

14

13

12

11

10

9

8

7 6 5 4 3 2 1

C354

0.1

C353

10/6.3

TP664

TP665

TP666

TP212

C204

0.47

TP211

TP487

TP204

TP901

R403

1K

R922 100K

R921

330

TP400

TP412

TP413

TP202

C651

1

C622

0.1

C602

1

C601

1

L602 47µH

L601 47µH

C6101 C609

1

C608

1

TP601

L608 47µH

L609

47µH

L610 47µH

IC601

17A39TD

PWM DRIVER

36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 21 20 19

8

1

7

1

6

1

5

4

1

3

1

2

1

0

9

8

7

6

5

4

3

2

1

TP207

R426

R601

56K

TP417

TP416

R404

100K

TP205

R222

1M

XL201

33.8688MHz

C211

5P(CH)

C212

8P

(CH)

CK207

TP203

CK224 CK222

L603 47µH

L604

47µH

C603

1

XL401

R407

10K

TP404

TP403

TP410

TP407

TP409

TP411

R412

10K

R411 100K

IC402

S29L294A

EEPROM

8 7 6 5

4

3

2

1

R415

1K

TP408

R413

1K

R414

1K

L171 10µH

TP206

C207

0.1

TP663

TP662

TP661

TP660

TP659

TP658

TP656

TP655

TP654

TP653

TP652

TP651

TP209 TP210

CK201 CK202 CK203

CK206

CK205

CK204

R205

680K

R906

270K

R905 100K

C910

0.033

C908

0.22

C906

0.0022

C909

0.033

C905

0.0022

C907

0.0022

IC901

BA6966FV

20

19

18

17

16

15

14

13

12

11

10

9 8 7

6

5 4 3 2 1

R902

1

R901

1

R904

33K

R903

330

C903

3.3

IC201

LR37811

ENDEC

LSI

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

80

79

78

77

76

50 49 48 47 46 45 44 43 42 41

40

39 38 37 36 35 34 33 32 31 30 29 28 27 26

TP201

TP208

C201

22/6.3

CN601

16

15

14

13 12

11

10

9

8

7

6

5

4 3 2 1

M

M903

LIFT MOTOR

PH901

GP1S93K

M

M902

SLED MOTOR

M

M901

SPINDLE

MOTOR

SW902

DISC

PROTECT

C165

0.033

R161

1.2K

C122 270P

(CH)

C121 270P

(CH)

C124 390P

C123 390P

TP139

TP100

R103 22K

R104

22K

R102

22K

R101

22K

TP119

TP115

TP105

TP101

TP109

TP106

TP102

TP108

TP103

TP114

TP110

TP118

TP111

TP121

TP122

TP120

TP117

TP116

22

21

20

19

18

17

16

15

14

13 12

11

10

9

8

7

6

5

4 3 2 1

CN101

75

74

73

72

71

70

69

68

67

66

65

64

63 62

61

60

59

58

57

56

55

54 53

52

51

25

24

23

22

21

20

19

18

17

16

15

14

13 12

11

10

9

8

7

6

5

4 3 2 1

25

24

23

22

21

20

19

18

17

16

15

14

13 12

11

10

9

8

7

6

5

4 3 2

1

8

7

6

5

4 3 2 1

8

7

6

5

4 3 2 1

7

74

73

72 71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54 53

52

51

L100 10µH

R206 270K

C172

33/6.3

C171

33/6.3

75

74

73

1 2 3

52

51

74 75

1 2

2

5

2 4

53 52 51

25

24

C130

0.1

CK106

TP151

TP145

R105 390K

C103 1

TP144

R154

1.2K

CK101

C161

1

CK104

C102 1

IC101

IR3R55

36 35 34 33 32 31 30 29 28 27 26 25

12

11

10

9

8

7

6

5

4

3

2

1

C110

0.22

CK103

C106

0.22

CK102

C109

1

C107

0.012

C104

0.027

Q101

2SA17457

48

47 46

45

44

43

42

41

40

39

38

37

24

23

22

21

20

19

18

17

16

15

14

13

R106

56K

CK108 CK107 TP133 TP132 TP131 TP130

C112

0.033 C111

0.0033

CK112

22

21

20

19

18

17

16

15

14

13 12

11

10

9

8

7

6

5

4 3 2 1

C203

0.1

R204

1K

C205

0.1

C100

10/6.3

R907 180K

R908

100K

C902

0.01

R909

10K

L651

56

IC651

LB1930M

MOTOR DRIVER

10

9

8

7

6

5 4 3 2 1

L600

2.2µH

C600 22/6.3

TP610

C605

0.1

C604

1

R408 100K

SW402

HOLD

SW403 DISC IN

3

2

1

4

TP441

C911

0.1

NC

ELON

ELLVL

AUD ATA

PBAULT

INNSW

PDCNT

EFMO

HDON

DISCPR

INNSW

DISCPR

SPIN

X176KO

SLDRF

SLDRR

TRDRF

TRDRR

FODRR

FODRF

DCNT1

SPDRF

SPDRR

CIN

PDCNT

SPIN

RFLAT

OPICGA

LDON

INPGCK

INPGIN

MCPGIN

EMPH0

PBMUTE

BEEP

AUSCLK

RCAULT

RCPCNT2

PCNT1

HSTOP

DSPDAT

DSPSTB

DSPSCK

SYD7

SYRS

SYRD

SYWR

SYD6

SYD5

SYD4

SYD3

SYD2

SYD1

SYD0

DINT

MCCK

CIN

SENSE

FOK

2.0V

PF4

SCK0

P33

PE3

SPWDS

P14

P24

DINT

S1S2G1

D1

S2

G2S1D2

D2S2S2

G2 G1S1S1

D1

RI4

FI4

FI3

RI3

VD4

FO4

PGND

RO4

VD4

VD3

RO3

PGND

FO3

VD3

GND

LG

VC

VG

RI2

FI2

FI1

RI1

VD2

FO2

PGND

RO2

VD2

VD1

RO1

PGND

FO1

VD1

OE

CLK

AGND

(JOG1)

(JOG0)

JPNP

V

C

V

S

VSS

EXTAL

VCC

uSTBY

NMI

MD2

WDTOVF

MD1

MD0

BUZOUT

RCPCNT

VSS

EEPD

UOUTVMVOUT

WOUT RF

RIB

STBY

BRK+

BRK– CSL2

CSL1

CST

COM

WIN

VIN UIN

FG

VCC

GND

T+

T–

F+

F–

PCNT1

PBOPON

RCLAT

PBLAT

RADAT

RACLK

RFLAT

OPICGA

RMDAT

PLVD

R

PLVD

PLVI

N

MCM

O

VCC

GND

EFMO

TCRS

RAA2

RAA1

RAA0

RAA4

RAA5

RAA6

RAA7

RAA8

RAOEX

RACASX

RAD2

RAD3

VDD2

DGND

RAA9

RARASX

RAWEX

RAD1

RAD0

VDD1

DGND

VDD1

DGND

BIN

EIN

FIN

AIN

AGND

TCG

SLDRR

SLDRF

TRDRR

TRDRF

X176KO

TEST2

FODRF

FODRR

TEST0

TEST1

WBI

VBAT

SYSD7

SYSD6

SYSD5

SYSD4

SYSD3

SYSD2

SYSD1

SYSD0

RSTX

DINTX

MCCK

COUT

SENSE

FOK

SFSY

SBSY

SBO

SBCK

TEMON

EMPH1

OPTCNT

DAPON

ADPON

VXI

X1I

X1O

DIN

DOUT

VDD3

DGND

LRCK

BCLK

PLCK

ACRCER

RAA10

CKS

T

PDCNT

INPGCK

INPGI

MCPGI

TEST1 TEST0

KHOLD

STOP

PLAY

RPLAY

DSPSCK

DSPDAT

DSPSTB

DISCPR

EJ

S

DCN

PRTCT

GND

DO DI

SK

CS

VCC

NC

RK

E

AV

C

F

O

SEN

S

RESET

VCC

XTAL

EMPH0

SWPUP

INNSW

VSS

LDON

SYRS

SYRD

SYWR

SYD7

SYD6

SYD5

SYD4

SYD3

SYD0

XR

S

EEPK

EPCS

AV

S

V

LDV

A

TE

M

HKE

Y

HKE

Y

+

–

HEAD

COM W

U V

–

+

OPICGA

AUD ATA AUSCLK

TEMP

LDVAR

RFLAT

LDON

T–

F+ T+

F–

EFMO

LDCNT2

LDCNT1

SPDRR

SPDRF

SLDRR

SLDRF

TRDRR

TRDRF

FODRR

FODRF

X176KO

FEMON

DADATA

ADDATA

DFCK

TOTMON

EFMMON AVCC EFMI

SYRS

SYWRX SYRDX

RAA3

NC

ELONL REC

ELONH

VSS

IRQ1

APQD

IR

Q

NC

N N

HD

O

PC

N

NC

CIN SPIN

SYD2

SYD1

NC

LDCNT2 LDCNT1 X700KO

SPDRR

SPDRF

NC

LOGIC

LPF

HPF

R and SW

DIFF DIFF

EFM AGC

ADIP AGC

BIAS

RF1 RF2 RF3 RF4 REFI

REFO RFADD

TCGI AIN BIN EIN FIN

BIAS

AVCC

STBY

DISC

SGAIN

AGND

DGND

DTEMP

LATCH

CLOCK

DATA

DVCC

FOUT

EOUT

BOUT

AOUT

TCGO

WBO

22KI

22KO

ADLPFO

ADIPO

ADIPI

ADAGC

ADAG

RF2-1

EFMO

EFMI

AVCC

AGND

EFMAGC

EFMAGI

TTR

GOUT

ROUT

NC

1 16

MAIN PWB-A

OPIC

VCC

MP/R

B

A

COM

CVCC

VCC

DGND

AGND

E

F

T–

F+

T+

F–

RF2

RF4

RF3

RF1

LDON

DGND

LDVAR

SYRS

SYRD

SYWR

SYD7

SYD6

SYD5

SYD4

SYD3

SYD2

SYD1

SYD0

XRT

VCCENDEC

MECHANISM FLEXIBLE PWB ASS'Y

NC

G

I1

VCC

I2

G

O1

O2

NC

+2.7V

LDCNT2

LDCNT1

VPD

@

NC

PS

NC

NC NC

OPEN

3-PHASE BRUSH

LEESS DRIVER

PLAYBACK SIGNAL RECORD SIGNAL

FLEXIBLE

PWB

FLEXIBLE PWB

IC353

HAT2051T

FEX 2 PACKAGE IC

+B

CK109

IC101 RF SIGNAL, PROCESSOR

IC

2

MD-MT821/W

– 31 –

7

8 9 10 11 12

• The numbers 1 to 18 are waveform numbers shown in page 37.

Figure 31 SCHEMATIC DIAGRAM (2/4)

P30

P31 P32

16

R422

100K

L204

R207

680

8

6

7

R458

56K

R457

18K

R456

8.2K

R455

5.6K

R453

18K

R452

8.2K

R451

5.6K

TP461 TP463

TP462

TP459

TP458

TP457

TP456

TP455

TP454

TP451 TP452 TP453

IC401

IX2792AF

SYSTEM

MICROCOMPUTER

100 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82 81 80 79 78 77 76

50

49

48

47

46

45

44

43

42

41

40

39

38

37

36

35

34

33

32

31

30

29

28

27

26

L202

22

TP481

TP482

TP483

TP485 TP484

C481

0.1

TP486

TP402

TP414

C200

1

IC200

62FP2002

POWER DRIVE

3

2

1

C202

47/6.3

TP212

C204

0.47

TP211

TP487

TP204

TP400

TP412

IC404

SN1G00DC

NAND GATE

5 4 3

2

1

TP413

TP202

C602

1

C601

1

602 7µH

601 7µH

TP207

R426

22K

TP417

TP416

TP405

TP406

R406 100K

R405

10K

TP205

R222

1M

XL201

33.8688MHz

C211

5P(CH)

C212

8P

(CH)

CK207

TP203

CK224 CK222

IC202

16 BIT D-RAM

24 23 22 21 20 19

18 17 16 15 14 13

12

11

10

9

8

7

6

5

4

3

2

1

604

7µH

C603

1

C401

0.1

XL401

R425

22K

R424

22K

R423

22K

R407

10K

TP404

TP403

TP415

TP401

SW401 EJECT

3 2

TP410

TP407

TP409

TP411

R412

10K

R411 100K

IC402

S29L294A

EEPROM

8 7 6 5

4

3

2

1

R415

1K

TP408

R413

1K

R414

1K

TP206

C207

0.1

TP209 TP210

CK201 CK202 CK203

CK206

CK205

CK204

R205

680K

IC201

LR37811

ENDEC

LSI

100

99

98

97

96

95

94

93

92

91

90

89

88

87

86

85

84

83

82

81

80

79

78

77

76

50 49 48 47 46 45 44 43 42 41

40

39 38 37 36 35 34 33 32 31 30 29 28 27 26

TP201

TP208

C201

22/6.3

TP200

C122 270P (CH)

C121 270P (CH)

C124 390P

C123 390P

TP139

103 2K

R104

22K

R102

22K

101

2K

75

74

73

72

71

70

69

68

67

66

65

64

63 62

61

60

59

58

57

56

55

54 53

52

51

25

24

23

22

21

20

19

18

17

16

15

14

13 12

11

10

9

8

7

6

5

4 3 2 1

25

24

23

22

21

20

19

18

17

16

15

14

13 12

11

10

9

8

7

6

5

4 3 2 1

75

74

73

72 71

70

69

68

67

66

65

64

63

62

61

60

59

58

57

56

55

54 53

52

51

7 6 5 4 3 2 1

CN482

13

12

11

10

9

8

7

6

5

4

3

2

1

CN451

C774

1

C773

0.22

IC771

TK71225M

2.5V

REGULATOR

5

4 3

2 1

C775

0.01

C507

10/6.3

C504

3.3/10

C503

3.3/10

C508

1

C500

10/6.3

IC501

AK4519VF

AD/DA

CONVERTER

R500

4.7

C505

0.001

C506

0.001

2 4

3 2

2

1

0

2

1

9

8

1

7

1

6

1

5

4

1

3

12

11

10

9

8

7

6

5

4 3 2 1

C

R482

33K

R481

33K

L100 10µH

R206 270K

4

1

75

74

73

1 2 3

52

51

74 75

1 2

2

5

2 4

53 52

51

25

24

C206

1

IC203

62FP2002

2V

REGULATOR

3

2

1

L771

100µH

C762

2.2

C761

2.2

C771

47/6.3

TP771

C868

1

C869

47/6.3

TP772

C759

0.027

R756

27K

C760

0 027

R757

27K

L87

0.47

µ

C

1 (

C836

0.1

C

8 0

D836

R826

220K

C823

0.1

R821

100K

C831

1

C821

56P

(CH)

R823 100K

R852

100K

R851

10K

C858

47P(CH)

C859

100P(CH)

R858

33K

C826

220/4

C825

2.2 D821

F10J2E

L821 22µH

N

R825

10M

R824

270K

C822 10P (CH)

D851

1SS389

R857 100K

C854

0.01

L851

4.7µH

IC851

NDS331N

POWER DRIVE

C856

1

D852

U1FWJ44N

L852 10µH

R855 300K

C857

10

C853

47P(CH)

R853 300K

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4 3 2 1

L862

100µH

C203

0.1

R204

1K

C205

0.1

C100

10/6.3

R502

470

R501

470

C502

0.0022

C501

0.0022

C511

1

L500

22µH

TP500

D861

F10J2E

C861

1

L600

2.2µH

C600 22/6.3

TP610

C605

0.1

C604

1

R408 100K

SW402

HOLD

SW403

DISC IN

3

2

1

4

TP441

NC

DADATA

HKEY2 HKEY1

HSTOP HPLAY

HREC

ELON

ELLVL

AUD ATA

PBAULT

INNSW

BCLK LRCK

DAPON

ADPON

DIN

DFCK

ADDATA

OPTCNT

EMPH1

RDATA

DISCPR

SPIN

DRY

DCI

INN

R

RKEY

CIN

PDCNT

HDON

TEMP

LDVAR

RFLAT

OPICGA

LDON

INPGCK

INPGIN

MCPGIN

EMPH0

PBMUTE

BEEP

AUSCLK

RCAULT

RCPCNT2

PCNT1

HKEY2 HKEY1

HSTOP

DSPDAT

DSPSTB

DSPSCK

SENSE

FOK

SYD7

SYRS

SYRD

SYWR

SYD6

SYD5

SYD4

SYD3

SYD2

SYD1

SYD0

XRT

DINT

MCCK

CIN

SENSE

FOK

2.0V

PF4

SCK0

P33

PE3

SPWDS

P14

P24

DINT

+2.7V

+2.5V

(JOG1)

(JOG0)

VCC

GND

A10

JPNP

VCC

VSS

EXTAL

VCC

uSTBY

NMI

MD2

WDTOVF

MD1

MD0

BUZOUT

RCPCNT

VSS

EEPD

T+

T–

F+ F–

PCNT1

PBOPON

RCLAT

PBLAT

RADAT

RACLK

RFLAT

OPICGA

RMDAT

PLVDRY

PLVDCI

PLVINN

MCMON

GND

I/O4 I/O3

CAS

OE

A8 A7 A6 A5 A4

VCC

A3

A2

A1

A0

A9

RAS

WE

I/O2

I/O1

EFMO

TCRS

RAA2

RAA1

RAA0

RAA4

RAA5

RAA6

RAA7

RAA8

RAOEX

RACASX

RAD2

RAD3

VDD2

DGND

RAA9

RARASX

RAWEX

RAD1

RAD0

VDD1

DGND

VDD1

DGND

BIN

EIN

FIN

AIN

AGND

TCG

SLDRR

SLDRF

TRDRR

TRDRF

X176KO

TEST2

FODRF

FODRR

TEST0

TEST1

WBI

VBAT

SYSD7

SYSD6

SYSD5

SYSD4

SYSD3

SYSD2

SYSD1

SYSD0

RSTX

DINTX

MCCK

COUT

SENSE

FOK

SFSY

SBSY

SBO

SBCK

TEMON

EMPH1

OPTCNT

DAPON

ADPON

VXI

X1I

X1O

DIN

DOUT

VDD3

DGND

LRCK

BCLK

PLCK

ACRCER

RAA10

CKSTP

PDCNT

INPGCK

INPGI

MCPGI

TEST1 TEST0

KHOLD

STOP

PLAY

RPLAY

DSPSCK

DSPDAT

DSPSTB

DISCPR

EJSW

DCNT1

GND

VCC

PRTCT

GND

DO DI

SK

CS

VCC

NC

RKEY

AVCC

FOK

SENSE

RESET

VCC

XTAL

EMPH0

SWPUP

INNSW

VSS

LDON

SYRS

SYRD

SYWR

SYD7

SYD6

SYD5

SYD4

SYD3

SYD0

XRST

EEPK

EPCS

AVSS

Vref

LDVAR

TEMP HKEY2 HKEY1

EMPH0

EFMO

LDCNT2

LDCNT1

DSPDAT

DSPSCK

DSPSTB

VCC2R5V

SPDRR

SPDRF

SLDRR

SLDRF

TRDRR

TRDRF

FODRR

FODRF

X176KO

NC NC

DINT

FEMON

DADATA

ADDATA

DFCK

TOTMON

EFMMON AVCC EFMI

SYRS

SYWRX SYRDX

RAA3

NC

ELONL REC

ELONH

VSS

IRQ1

APQD

IRQ0

NC

NC NC

HDON

PCNT2

NC

SDTO

SCLK

LRCK

MCLK

AINL

VCMR

VCML

AINR

VRAD

VRDAVA

VB

AGND

VCOM

AOUTR

DEM0

AOUTL

SDTIVDDGND

PWAD

PWDA

CIN SPIN

SYD2

SYD1

NC

LDCNT2 LDCNT1 X700KO

SPDRR

SPDRF

VCCDRAM

PBMUTE

RESET

BEEP

RCAULT

Buf

VREF

LVS

OSC

OSCPLS

OSCI

OSC

RDB

Buf Buf

DELAY

–

+

OSCI

VCC

VREF

EIP2

EIN2

EO2

PVCC

O2

PGND

LVCC

CTL2

CHG1

PGND

VREG1

REG1

OD1

O1

GND

EO1

EIN1

EIP1

CTL1

RDB

OSC

NC

DCNT1

2.0V

SYRS

SYRD

SYWR

SYD7

SYD6

SYD5

SYD4

SYD3

SYD2

SYD1

SYD0

XRT

VCCENDEC

VPD

@

NC

NC NC

OPEN

DEM1

CMODE

+B

IC202 IX2723AF Serrial 903xxxxx

IX2735AF Serrial 904xxxxx~

MD-MT821/W

– 32 –

A

B

C

D

E

F

G

H

1

23456

• NOTES ON SCHEMATIC DIAGRAM can be found on page 28.

Figure 32 SCHEMATIC DIAGRAM (3/4)

P30

P32

P31

• The numbers 1 to 18 are waveform numbers shown in page 37.

MD-MT821 8.2Ω MD-MT821W 18Ω

R765,766

L702

L703

L704

L714 L713 L712

L711

L452

L453

L454

L457

L458

L456

F800 T1A L 25VDC

!

8

6

7

C805

100/6.3

R844

560K

D804

1SS400

D803

1SS400

R802

1K

R804

680

R810

5.6K

IC801

HN1C01FU

POWER

TRANSISTOR

6 5 4 3

2

1

D800

1SS360

R809

2.2K

R806 300K

C807

0.01

R805 680K

TP801

TP802

TP805

C841

10/6.3

C842

1

R458 56K

R457

18K

R456

8.2K

R455

5.6K

R453

18K

R452

8.2K

R451

5.6K

TP461 TP463

TP462

TP459

TP458

TP457

TP456

TP455

TP454

TP451 TP452 TP453

TP807

C806

3.3

D801

SB10015C

IC802

FDC634P

CONSTRANT

CURRENT DRIVE

D431

1SS361

C431

0.47 R431

330K

R894

22

C891

0.47 Q891

2SA1873GR

R892

82

D841

RB731U

6

5

4 3 2 1

R812

100K

R808

1M

C808

1

R807 100K

IC841

XC66DS01

5 4 3

2

1

R841 100K

R842

100K

R843

100K

Q841

RN1104

R811 100K

R801

2.2K

R800

22K

C801

0.1

R816

24K

D802

015Z5.1Y

TP803

TP804

TP810 TP811

TP812

TP808

TP809

R815

56K

TP481

TP482

TP483

TP485 TP484

C481

0.1

TP486

C200

1

IC200

62FP2002

POWER DRIVE

3

2

1

202 /6.3

C404

1G00DC

D GATE

5 4

TP405

P406 405

10K

02

D-RAM

24 23 22 21 20 19

18 17 16 15 14 13

R424

22K

5

SW401 EJECT

3 2

5

4

3 2 1

6

5

4

3 2 1

7 6 5 4 3 2 1

CN482

13

12

11

10

9

8

7

6

5

4

3

2

1

CN451

C774

1

C773

0.22

IC771

TK71225M

2.5V

REGULATOR

5

4 3

2 1

C775

0.01

C507

10/6.3

C504

3.3/10

C503

3.3/10

C508

1

C500

10/6.3

IC501

AK4519VF

AD/DA

CONVERTER

R500

4.7

C505

0.001

C506

0.001

2 4

3 2

2

1

0

2

1

9

8

1

7

1

6

1

5

4

1

3

12

11

10

9

8

7

6

5

4 3 2 1

C509

2.2 C510

2.2

R769

15K

R770

15K

R763

68

C765

0.33

R767

1K

R764

68

C766

0.33

R768

1K

L752 10µH

L751 10µH

R753

100K

IC701

IR3R54N

AUDIO AMP

R703

100K

C758

3.3/10

C755

0.01

C753

1

C702

10/6.3

R701

22

C756

0.68

R762

4.3K

R761

4.3K

R754 270K

C757

0.68

IC703

IR3R54N

AUDIO AMP

C701

10/6.3

C734

0.1

C733

0.1

R720

8.2K

R719

8.2K

R712

5.6K R711

5.6K

C754

1

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4 3 2 1

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4 3 2 1

R893

1K

R891

1K

D493

015Z5.1Y

D491

015Z5.1Y

C491

0.1

D494

15AZ7.5Y

D492

15AZ7.5Y

R492

1K

TP721 TP727

TP728

TP723

TP724

TP722

TP725

TP726

J703

REMOTE CONTROL/

HEAD-PHONES

8

7

6 5

4 3

2

1

L710

47

J702

MIC IN

4

3

2

1

Q711

RN1444 A

C713

1

C715

0.1

TP703 TP705

TP708 TP701

TP709

TP704

TP702

TP707

R715 100K

R716 100K

J701

OPTICAL/

LINE IN

9 8

7

6

5

4

3

2

1

R725

100

C725

3.3/10

R482

33K

R481

33K

R713

10K

R765

*

R766

*

R717

1K

C703

0.01

R702

22

R729

2.7K R730

2.7K

C721

3.3/10

C722

3.3/10 C738

R728

1K

C731

0.22

R727

8.2K

C723

0.001

R723

6.8K R724

6.8K

C724

0.001

C752

0.082

C751

0.082

4

1

J801

DC

JACK

3

2

1

C206

1

IC203

62FP2002

2V

REGULATOR

3

2

1

L771

100µH

C762

2.2

C761

2.2

C771

47/6.3

TP771

C868

1

C869

47/6.3

TP772

C759

0.027

R756

27K

C760

0.027

R757

27K

L871

0.47µH

C872 10/10

R832

200K

C833

0.33

C855 180P (CH)

C836

0.1

C837

0.1

D836

MA793

R826 220K

C823

0.1

R821

100K

IC830

IR3M12N

DC/DC CONVERTER

C831

1

C821

56P (CH)

R823 100K

R852

100K

R851

10K

C858

47P(CH)

C859

100P(CH)

R858

33K

R860

33K

C826

220/4

C825

2.2 D821

F10J2E

L821 22µH

IC821

NDS332P

POWER DRIVE

R825

10M

R824

270K

C822

10P (CH)

D851

1SS389

R857 100K

C854

0.01

L851

4.7µH

IC851

NDS331N

POWER DRIVE

C856

1

D852

U1FWJ44N

L852 10µH

R855 300K

C857

10

C853

47P(CH)

R853 300K

24

23

22

21

20

19

18

17

16

15

14

13

12

11

10

9

8

7

6

5

4 3 2 1

C871

1

L862

100µH

R831 180K

13

12

11

10

9

8

7

6

5

4

3

2

1

7 6 5 4 3 2 1

R502

470

R501

470

C502

0.0022

C501

0.0022

C511

1

L500

22µH

TP500

C711 100P (CH)

C712 100P (CH)

C714

1

R714

10K

R726

39K

C726

3.3/10

Q721

2SC4213 B

TP714 TP713 TP712

TP711

TP729

IC871

TK71345M

4.5V REGULATOR (ON/OFF)

5

4 3

2 1

R872

100K

D861

F10J2E

C861

1

DADATA

VCC1

HKEY2 HKEY1

HSTOP HPLAY

HREC

RESET

HREC

RPLAY

HPLAY

PCNT1

DCI

DRY

INN

BCLK LRCK

DAPON

ADPON

DIN

DFCK

ADDATA

OPTCNT

EMPH1

RDATA

DRY

DCI

INN

EMP

DVAR

KEY2 KEY1

E

+2.7V

+2.5V

GND

I/O4 I/O3 CAS

OE

A8 A7 A6 A5 A4

A9

VCC

LCD

DRIVER

EMPH0

RI LI

LI

RI

ELON

ELLVL

RKEY

RPLAY

KEY

L-CH R-CH

NC

L

R

GND

VCC GND

Vout

DSPDAT

DSPSCK

DSPSTB

INPGCK

INPGIN

2R5V

MCPGIN

R-CH

L-CH

RDATA

PLAY

L-CH

R-DH

NC NC

NC

DINT

ROUT

RIHP

LOUT

LIHP

AGND

VEE

DGND

VCC

NCNC

AGND

LIHP

LOUT

RIHP

ROUT

VCC

VEE

DGND

NC

SDTO

SCLK

LRCK

MCLK

AINL

VCMR

VCML

AINR

VRAD

VRDAVA

VB

AGND

VCOM

AOUTR

DEM0

AOUTL

SDTIVDDGND

PWAD

PWDA

PBMUTE

RESET

BEEP

RCAULT

AUD ATA

AUSCLK

PBAULT

RCPCNT2

Buf

VREF

LVS

OSC

OSCPLS

OSCI

OSC

RDB

Buf Buf

DELAY

–

+

OSCI

VCC

VREF

EIP2

EIN2

EO2

PVCC

O2

PGND

LVCC

CTL2

CHG1

PGND

VREG1

REG1

OD1

O1

GND

EO1

EIN1

EIP1

CTL1

RDB

OSC

NC

DCNT1

2.0V

EDIT DISPLAY SKIP DOWN SKIP UP REC MODE

GND

ENTER

BASS

PLAY

STOP VOLUME DOWN

VOLUME UP

KEY SWITCH FLEXIBLE PWB ASS'Y

TERMINAL, BATTERY+

TERMINAL, BATTERY–

DEM1

CMODE

C800

1

RESET 2.35V

REGULATOR

+B

LCD ASS'Y

EXTENSION BATTERY TERMINAL

*

Serrial 903xxxxx Serrial 904xxxxx~

MD-MT821/W

– 33 –

7

8 9 10 11 12

Figure 33 SCHEMATIC DIAGRAM (4/4)

PIN NO.

VOLTAGE

1 2

4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

100

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

IC401

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

1

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

PIN NO.

VOLTAGE

Preform the measurement on the IC401 pin 37 in the TEST mode with GND short-circuited. (LCD is in "TEST" state.)

PIN NO.

VOLTAGE

IC101

0.4V

1.25V

1.26V

0.4V

1.26V

2.5V

0.18V

2.5V

2.5V 0V 0V

1.49V

2.37V 0V 0V

2.5V

1.26V

1.58V

1.26V

1.26V NC

1.26V

1.26V 0V

1.25V

1.26V

1.27V

1.25V

2.5V 0V 0V

1.26V

1.25V

1.26V 0V

IC201

1V 0V 0V

IC501

2.51V 0V

IC701 IC830

1.25V

IC841

2.37V

IC202 IC351

IC402

IC871

IC404 IC354

IC353

IC601

IC651

IC703

IC771

IC801

IC802

IC901

3

1 2

4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77

78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

3

100

1 2

4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50

51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77

78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99

3

1 2

4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

3

1 2

4 5 6 7

8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

3

2

4 5

3

1 2

4 5 6 7

8

9 10 11 12

3

1 2

4 5 6 7

8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

3

1 2

4 5 6 7 8

3

1 2

4 5

3

1 2

4 5

3

1 2

4 5

3

1 2

4 5 6 7

8

9

10

9

10

11 12 13 14

3

1 2

4 5 6 7 8

3

1 2

4 5 6 7 8

3

1 2

4 5 6

3

1 2

4 5 6 7 8

3

1 2

4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20

3

1 2

4 5 6 7 8

9 10 11 12 13 14 15 16 17

18 19

20 21 22 23 24

13 14 15 16 17 18 19 20 21 22 23 24

25 26 27 28 29 30 31 32 33 34 35 36

3

1 2

4 5 6 7 8

9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24

3

1 2

4 5 6

3

0.88V

2.5V

1.27V 0V

1.25V

1.26V

1.25V

1.26V

1.3V

1.58V 2V

0V 0V 0V 0V 1V 0V 0V 0V 0V 0V 0V 0V 0V

0.49V

1.44V

1.13V

2.56V

0.52V

0.82V

0.8V

0.199V

1.85V

1.92V

3.1V

1.69V

0.51V

1.56V

1.1V

1.75V

2.57V

1.74V

1.19V 0V

1.93V 1V

0.91V

0V 0V 0V 0V 2V 0V 0V 0V 0V

0.14V 2V 0V

0.9V

0.89V

1.66V 1V 2V 0V 1V 1V 0V 0V 0V 1V 1V 1V 2V 0V 2V 1V 2V 0V 0V 1V 2V 2V 0V

2.36V

1.41V

1.65V 0V

0.1V

0.37V 0V

1.76V

0.32V

2.27V

2.36V 0V

2.5V 0V

2.35V NC 0V 0V

0.23V 0V

2.24V 0V

2.04V

2.31V

2.32V

0.35V 0V 0V 0V

2.36V 0V

2.36V

2.27V

1.4V –1.65V 0V

0.1V

0V

2.37V 0V

2.34V 0V

2.37V

2.69V

2.37V

2.3V

2.37V

1.07V

1.15V 0V

2.36V

2.35V 0V 0V

2.0V

2.35V 0V

0.64V

0.37V 0V

1.76V

0.32V 0V 0V

2.16V

2.71V

2.71V 0V 0V

2.36V

2.35V

2.37V

2.36V

2.37V 0V 0V

2.37V 0V 0V 0V

2.18V

2.37V

2.37V 0V

1.51V

1.42V

2.14V

2.36V

1.49V 0V 0V 0V 0V 0V 0V

2.35V 0V 2V 0V 0V 0V

2.37V – 0V

2.51V 0V 0V 0V 0V 0V 0V 1V 1V 1V 0V 0V

2.51V 0V 0V 0V 0V 0V 0V 0V 0V

2.51V

0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V 0V –2.45V 0V 0V

2.37V

0.97V 0V 0V 0V

1.23V

2.37V

1.22V

1.25V

1.06V 0V

0.53V 0V 0V 0V 0V

0.87V

2.36V 0V 0V

2.0V

4.7V

1.22V

1.25V

1.22V

1.24V

4.7V

0.38V

2.59V

1.2V

1.55V

2.42V

1.92V NC

0.93V

1.43V

0.59V

0.61V

0.60V

2.56V 0V

0.52V

0V 0V

4.51V 0V 0V

0.22V

0.22V 0V

2.24V

2.51V

0V 0V 0V

4.56V

11.56V

4.51V 0V

0.91V

– 0V 0V 0V 0V 0V 0V

–

2.73V

0.12V 0V 0V 0V 0V 0V

2.73V

2.37V 0V

0.3V

0.36V 0V 0V

0.26V

2.37V

4.51V 0V

0.91V

4.46V 0V

4.55V

0.82V

0.99V

1.13V

1.85V

2.1V

1.69V

1.73V 0V

0V 0V

4.72V 0V 0V 0V 0V 0V 0V 0V 0V

4.72V 0V 0V 0V

4.72V

4.72V 0V 0V 0V

4.72V 0V 0V

2.72V

11.56V

2.73V 0V 0V 0V 0V 0V – 0V 0V 0V

0V 0V 0V 0V 0V

1.26V 0V 0V

2.51V

2.73V

0V

0.2V 0V 0V

0.73V

0V

0.9V

2.34V 2V 0V

2.51V

0.67V 0V

2.35V 0V

2.5V 0V 0V 0V 0V

0V 0V 0V 0V 0V

0V

2.37V

4.7V

2.37V

0V

5.1V 0V

5.1V

0V 0V

0.97V 0V 0V 0V

0V 1V

2.35V 0V

4.72V 0V 0V 0V

4.72V

4.72V 0V

0V

2.37V 0V 0V 0V –2.45V 0V 0V

2.37V

0.85V 0V 0V 0V

MD-MT821/W

– 34 –

A

B

C

D

E

F

G

H

1

23456

Figure 34 WIRING OF P.W.BOARD (1/3)

• The numbers 1 to 18 are waveform numbers shown in page 37.

: Through-hole where the top, bottom and +B patterns are connected. : Through-hole where the top, bottom and hround patterns are connected. : Through-hole where the top and bottom patterns are connected. : Through-hole connected to any items other than the ground in 6-layer PWB and the +B pattern.

IC201

J701

OPTICAL/

LINE IN

IC901

R901

C361

R904

C907

C906

C905

R902

C908

R903

C911

1

5

15

20

10

11

R907

R906

R909

C902

R908

C909

C910

C903

C351

R361

Q901

D351

IC354

R206

R205

C205

C491

R765

R767

R763

C207

R764

C752

C751

C765

C766

R766

R768

J703

Remote Control/Head-phones

C204

R103

R101

R104

C123

C122

C121

R102

R106

C124

C106

C107

C109

C110

Q101

IC101

C104

R105

C130

C103

C102

C112

C111

1

5

10

12

13

15

20

24

25

30

35

40 45

48

36

37

IC202

R154

C161

C508

R500

C507

C200

XL401

IC200

R351

C357

C354

C353

R905

R920

IC353

L608

L609

L610

C622

C608

C610

1

5101520

25

26

30

35

40

45

50

51

55606570

75

76

80

85

90

95

100

1

4

5

8

5

10

7

8

14

C609

IC351

IC601

C651

C203

L651

1

5

10

15

25

20

30

35

36

18

19

R601

R207

IC501

C506

C505

C501

C502

1

6

7

12

13

18

19

24

510

15 20

24

12

13

R501

R502

R717

Q711

C211

C212

R222

C511

XL201

C762

R762

R761

R770

R769

C757

C756

C761

C713

C714

C725

C726

C701

C702

R701

R703

C509

C503

C504

C773

C775

C510

IC771

R844

C842

1

3

5

4

6

4

5

4

C774

R719

R720

C703

R702

C711

C712

R712

R711

D841

IC841

Q841

IC802

C500

R811

R841

R842 R843

R812

C800

D802

R815 R816

R810

C856

C801

L500

D852

C826

R800

D800

R809

R802

D804

R804

D803

R801

13

4

6

IC801

C600

C805

C806

J801

DC Jack

C871

C872

C841

IC701

C733

C734

IC871

L871

1

13

15

20

24

5

10

12

R872

J702

MIC IN

MAIN PWB-A (BOTTOM VIEW)

1345

1

6

4

3

L204

3

1

4

5

L702

R204

CK222

CK224

CK112

CK103

CK102

CK101

CK104

CK106

CK108

CK107

CK206

CK204

CK203

CK202

CK201

CK205

CK207

3

4

5

8

6

12

17

7

16

MD-MT821/W

– 35 –

7

8 9 10 11 12

Figure 35 WIRING OF P.W.BOARD (2/3)

CN601

CN451

L100

L171

C171

D493

C172

R894

Q891

R893

C891

R891

R892

L710

SW401 EJECT

1

5

6

10

D492

L456

R492

L752

L751

D494

SW402

HOLD

R406

R405

C807

R806

R805

IC651

L603

L604

L601

L602

R403

R404

C602

C601

C603

C604

R922

R921

R431

D431

C431

R422

R407

R408

IC401

R426

R808

C808

D836

C100

C165

R161

C202

L202

C201

C759

C760

R757

R756

C755

R753

C754

C753

CN101

D491

IC703

SW403

DISC IN

IC402

R415

R414

IC404

R413

R411

R412

1

4

5

8

R754

1

5

10

12

13

15

20

24

C758

R715

R713

R831

R832

1

5

10

15

20

25

26

353040 45

50

51

55

60

65

70

75

76

80859095

100

C401

C833

C868

C869

C771

C859

R424

R423

R425

R825

R824

C822

C836

C837

C825

C831

R826

L821

R855

R851

C858

R852

R858

R860

L600

C605

D821

C853

C857

R853

L852

D801

IC821

D861

L851

IC851

C855

C823

R821 R823

C821

IC830

R482

R456

R457

R455

R452

R458

R453

R451

L862

1

5

10

12

13

1520

24

IC203

C206

C715

L771

R730

R729

R723

C723

R724

C724

C722

R728

R716

R714

Q721

C731

R726

R727

R725

C721

R481

C481

CN482

C861

R857

D851

C854

R807

1

3

4

2

13

1

J701

OPTICAL/

LINE IN

13

45

22

1

87

2

3

4

56

1

16

1

22

To Optical Pickup Unit

P36 1-D

J703

Remote Control/Head -phones

1

16

To Mechanism Flexible PWB Ass'y

P36 6-C

17

113

To Key Switch Flexible Ass'y

P36 2-E

17

To LCD Ass'y

P36 5-E

3

21

J801

DC Jack

Terminal ,Battery –

(213)

Terminal , Battery +

(212)

J702

MIC IN

MAIN PWB-A(TOP VIEW)

Extension battery

Terminal

(217)

4

3

2

1

6

9

8

3

1

5

4

2

7

2

3

4

1

31

4

5

L711

L712

L713

L704

L703

L714

C738

L458

L454

L457

L452

L453

TP487

TP105

TP723

TP144

TP721

TP726

TP725

TP722

TP727

TP728

TP724

TP121

TP120

TP729

TP100

TP655

TP803

TP663

TP661

TP659

TP666

TP664

TP660

TP658

TP406

TP133

TP601

TP901

TP662

TP657

TP205

TP602

TP656

TP404

TP351

TP651

TP151

TP653

TP652

TP211

TP416

TP417

TP201

TP139

TP116

TP115

TP110

TP114

TP109

TP103

TP101

TP119

TP117

TP118

TP111

TP108

TP102

TP207

TP122

TP212

TP131

TP130

TP132

TP413

TP203

TP206

TP145

TP106

TP210

TP411

TP408

TP204

TP412

TP407

TP200

TP409

TP401

TP707

TP702

TP414

TP500

TP701

TP808

TP209

TP403

TP654

TP400

TP402

TP208

TP665

TP811

TP610

TP410

TP809

TP202

TP771

TP415

TP405

TP805

TP812

TP807

TP801

TP802

TP810

TP772

TP709

TP708

TP704

TP705

TP703

TP712

TP713

TP714

TP711

TP486

TP455

TP457

TP459

TP462

TP453

TP451

TP485

TP483

TP482

TP481

TP452

TP456

TP454

TP458

TP461

TP463

TP441

TP804

TP484

L802

2

1

13

14

15

11

18

10

9

MD-MT821/W

– 36 –

Figure 36 WIRING OF P.W.BOARD (3/3)

A

B

C

D

E

F

G

H

1

23456

Optical Pickup Unit (15)

Magnetic Head Flexible PWB (23)

Magnetic Head (30)

Mechanism Flexible PWB Ass'y (8)

M902 Sled Motor

M903 Lift Motor

PH901 Phote Interrupter

M901 Spindle Motor

SW902 Disc Protect

To Main PWB

CN601

To MAIN PWB P35 10-A

CN482

LCD Ass'y (219)

Key Switch Flexible PWB Ass'y(218)

To MAIN PWB P35 9-A

CN451

CN101

To MAIN PWB P35 7-H

P35 10-H

MD-MT821/W

– 37 –

WAVEFORMS OF MD CIRCUIT

NORM:200kS / s

1994 / 12 / 15 22:54:19

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.000V

Main : 10K

Zoom : 10K CH3 : 0.00V CH4 : 0.00V

=Trigger= Mode : NORMAL Type : EDGE CH4 Detay : 0.0ns Hold OFF : MINIMUM

T

TP208

(FEOUT)

CK204

(FOK)

TP122

(F+)

CK205

(SENSE)

Stopped

CH1=1mV

DC 10:1

CH3=5V

DC 10:1

CH4=2V

DC 10:1 (50ms/div)

50ms/div

CH2=500mV

DC 10:1

T

1

4

3

2

1

2

3 4

NORM:100MS / s

1994 / 12 / 16 00:24:17

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 5K

Zoom : 5K CH3 : 0.00V CH4 : 0.00V

=Trigger= Mode : AUTO Type : EDGE CH3 Detay : 0.0ns Hold OFF : MINIMUM

T

SDTi

MCLK

SCLK

LRCK

Stopped

CH1=2V

DC 10:1

CH3=2V

DC 10:1

CH4=2V

DC 10:1 (50us/div)

50us/div

CH2=2V

DC 10:1

T

1

4

3

2

5

6

7

8

ENV

1994 / 12 / 16 01:03:40

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 10K

Zoom : 10K CH3 : 0.000V CH4 : 0.00V

=Trigger= Mode : NORMAL Type : EDGE CH2 Detay : 0.0ns Hold OFF : MINIMUM

T

TP201 (EFM)

TP210

(TEOUT)

TP209

(TOTAL)

Stopped

CH1=1V

DC 10:1

CH3=500mV

DC 10:1 (2ms/div)

2ms/div

CH2=2V

DC 10:1

T

1

2

9

10 11

ENV

1994 / 12 / 15 23:31:21

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 10K

Zoom : 10K CH3 : 0.00V CH4 : 0.00V

=Trigger= Mode : NORMAL Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

T

SPDRR

TP601

(VM)

Stopped

CH1=2V

DC 10:1 (50ms/div)

50ms/div

CH2=2V

DC 10:1

T

1

2

12

13

FULL 20MHz

BandwidthONSmooth

OFF

1994 / 12 / 18 09:26:46

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 10K

Zoom : 10K CH3 : 0.00V CH4 : 0.00V

=Trigger= Mode : AUTO Type : EDGE CH2 Detay : 0.0ns Hold OFF : MINIMUM

T

TP208

(FEOUT)

TP210

(TEOUT)

TP656

(SL+)

TP657

(SL-)

Stopped

CH1=2V

DC 10:1

CH3=2V

DC 10:1

CH4=2V

DC 10:1 (1s/div)

1s/div

CH2=2V

DC 10:1

1

4

3

2

ENV

1

10 14

15

1994 / 12 / 16 01:23:16

=Filter=

=Tracel= P-P 1.280V

=Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.000V CH2 : 0.00V

Main : 1K

Zoom : 1K CH3 : 0.00V CH4 : 0.00V

=Trigger= Mode : AUTO Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

T

TP201 (EFM)

Stopped

CH1=2V

DC 10:1 (500ms/div)

500ms/div

1

MORM:200MS/s

9

1994 / 12 / 15 08:57:26

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 10K

Zoom : 10K CH3 : 0.000V CH4 : 0.0V

=Trigger= Mode : NORMAL Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

T

TP201 (EFM)

TP210

(TEOUT)

TP209

(TOTAL)

Stopped

CH1=2V

DC 10:1 (2ms/div)

2ms/div

CH2=2V

DC 10:1

1

2

ENV

T

CH3=500mV

DC 10:1

9

10 11

1994 / 12 / 15 09:58:45

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 10K

Zoom : 10K CH3 : 0.00V CH4 : 0.00V

=Trigger= Mode : AUTO Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

T

TP208

(FEOUT)

TP210

(TEOUT

)

SPDRR

TP601

(VM)

Stopped

CH1=2V

DC 10:1

CH3=2V

DC 10:1

CH4=2V

DC 10:1 (1s/div)

1s/div

CH2=2V

DC 10:1

1

3

4

2

ENV

1 10 12

13

1994 / 12 / 15 08:39:46

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 10K

Zoom : 10K CH3 : 0.00V CH4 : 0.0V

=Trigger= Mode : AUTO Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

T

TP210

(TEOUT)

TP656

(SL+)

TP657

(SL-)

Stopped

CH1=2V

DC 10:1

CH3=2V

DC 10:1 (1s/div)

1s/div

CH2=2V

DC 10:1

1

3

2

NORM:1kS/s

10

14 15

1994 / 12 / 15 09:10:03

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.000V CH2 : 0.00V

Main : 4K

Zoom : 4K CH3 : 0.000V CH4 : 0.0V

=Trigger= Mode : NORMAL Type : EDGE CH1 Detay : 0.0ns Hold OFF : MINIMUM

T

CK109

(HPFO)

CK108 (WBO)

Stopped

CH1=500mV

DC 10:1 (20us/div)

20us/div

CH2=2V

DC 10:1

1

2

ENV

16

17

1994 / 12 / 15 21:54:52

=Filter= =Offset= =Record Length= Smoothiing : OFF BW : FULL

CH1 : 0.00V CH2 : 0.00V

Main : 10K

Zoom : 10K CH3 : 0.00V CH4 : 0.00V

=Trigger= Mode : NORMAL Type : EDGE CH2 Detay : 0.0ns Hold OFF : MINIMUM

T

TP201

(EFM)

TP210

(TEOUT)

TP121

(T-)

Stopped

CH1=2V

DC 10:1

CH3=1V

DC 10:1

CH4=1V

DC 10:1 (500us/div)

500us/div

CH2=2V

DC 10:1

1

3

4

2

ENV

9

10

18

For TP208, TP209, and TP210, use the specific LPF, and observe the waveform.

1000P

10K

TP

Measurement

When watching the EEM monitor (TP201) Set MSL from 00H to 80H with EEPROM control setting. After completion restore 00H.

MD-MT821/W

– 38 –

TROUBLE SHOOTING

It is advisable to use the TEST mode (refer to Error Data Display Mode, P13) indicating the causes of troubles before starting repair. Causes of operation errors (up to 10 errors) are recorded as error codes. This information is useful for repair.

When does not function

When the CD section does not operate When the objective lens of the optical pickup is dirty,this section may not operate.Clean the objective lens,and check the playback operation.When this section does not operate even after the above step is taken,check the following items. Remove the cabinet and follow the troubleshooting instructions. "Track skipping and/or no TOC(Table Of Contents) may be caused by build up of dust other foreign matter on the laser pickup lens. Before attempting any adjustment make certain that the lens is clean. If not, clean it as mentioned below."

Turn the power off. Gently clean the lens with a lens cleaning tissue and a small amount of isopropyl alcohol. Do not touch the lens with the bare hand.

Is the power supply turned on when the remote control button or main unit button is pressed?

No

Perform the check stated in item "Power is not turned on when the PLAY button is pressed".

Perform the check stated in item "Abnormal display".

No

Yes

Does the display operate normally?

Is playback state set?

Yes

Perform the check stated in item "Playback state connot be set".

No

Is audio output normal?

Yes

Perform the check stated in item "Audio playback circuit".

No

Is recording/playback operation normal?

Yes

Perform the check stated in item "Recording/playback operation".

No

• Power is not turned on when the / button is pressed.

No

Yes

Check the periphery of remote controller and main unit headphone terminal (J703) and IC401.

No

Is the pin 55 of IC401 in H state?

Is operation normal when the main body button is pressed?

Check the position of Hold switch.

Is power turned on when the remote control button is pressed?

No

Does the pin 66 of IC401 oscillate?

Replace XL401.

Yes

MD-MT821/W

– 39 –

Yes

Check whether there is defective solder joint of audio signal line between IC703 and J703

No

Yes

Is audio wavefrom output from J703 pins 3 and 4.

Check the pins 5 and 6 of IC703.

No

Yes

Is audio wavefrom output from IC703 pins 18 and 19.

Check IC201 pins 70 to 72, pin 74 and IC501 pins 9, 10, 11, 15

No

• Abnormal display

No

Yes

Are the pin7 (VCC) and pin 6 (GND) normal?

Is waveform output from IC401 pins 9,10,13?

Is waveform output from CN482 pins 1 to 3?

• Playback state cannot be set

Is initialization performed normally in case of high- reflection disc playback?

Yes

Check between IC401 and CN482.

No

Check the periphery of IC401.

Does the playback time display advance?

Yes

Position check in INNER mode

Check IC201 and IC202 connection line.

Is the lead-in photointerrupter set to OFF when the optical pickup moves to the innermost periphery in NORMAL mode? (Is TP660 in H level?).

Check the lead-in photointerrupter, mechanical flex PWB soldering and CN601 connection.

No

Ia an attempt to repeat repeatedly the TOC part performed on the low-reflection disc?

Yes

No

Replace the disc.

No

• Audio playback clrcult

When it has been ascertained that the address up to cluster address is normal in the TEST mode.

Yes

Is audio wavefrom output from IC501 pins 19 and 20?

Check headphones jack,and periphery of headphone.

Although the playback time display is acting., no sound is given during playback in the normal mode.

Check for pattern breakage of flexible PWB, check for defects of display microcomputer (replace the display unit).

MD-MT821/W

– 40 –

• The spindle motor fails to run.Does the head move

No

Does the waveform appear on the IC201 pins 24 and 25 after TEST mode AUTO2 completion and in this state?

Check the IC201 periphery.

Yes

Does waveform appear on the IC601 pin 13?

Does waveform appear on IC901 pins 1, 19 and 20?

Replace the spindle motor.

Yes

No

L608, IC201, IC901, CN601 and flex, etc. soldering check

No

Replace. IC601

Yes

• Recording/playback operation

Insert a low reflection disc, and ascertain audio output by normal playback, and then set TEST REC mode.

Yes

Does the head move down, failing to start record even when the continuous record mode is set after address?

Check voltage of pins 52 and 53 of IC201, pins 3, 4, 7, and 9 of IC651, pins 1 and 2 of CN601. Check whether disc is recordinhibited.

No

Does the RF waveform of TP201 appear when playback is

Does level of pins 86 of IC401 and pin 17 of IC101 change depending on record and playback?

Is RF pattern output from IC201 pin 50?

Yes

No

Check for soldering failure of IC201 .

No

Check periphery of IC401 and IC101.

Check whether there is any damage in IC101, periphery of laser diode.

Yes

Check for defects of IC351 in head drive flexible PWB,head, flexible PWB.

No

Yes

Is audio monitor output given in normal mode LINE IN record?

Check waveforms of pins 9 to 12 of IC501, pins 70 to 73 of IC201.

Is waveform obtained on IC501 pins 3 and 6?

No

Yes

Check whether the pin 7 of IC501 and the pin 59 of IC201 are in H state.

No

Does voltage on the IC701 pins 13 to 15 change in case of record VOLUME UP/DOWN?

Is audio waveform observed on the pins 18 and 19 of IC703?

Yes

Check whether input waveform is observed on the pins 5 and 6 of IC703.

Yes

MD-MT821/W

– 41 –

1 P12/TCLKA CIN Input Track cross signal/focus drive detection 2 TCLKB SPIN Input Spindle motor FG pulse detection input 3* P14 P14 Output (not used) 4 P15 DISCPR Input Disc record inhibition switch input 5* TIOCA2 SPWDS Input Spindle motor FG pulse width detection 6 P17 PDCNT Output Inner detection PD current control output 7 Vss VSS — Ground potential 8 TxD0 RMDAT Output Remote control indication data output 9 TxD1 DSPDAT Output Unit indication data output 10 P32 DSPSTB Output Unit indication strobe output 11* P33 P33 Output Spare(not used) 12* SCK0 SCK0 Output Serial I/O clock output (not used) 13 SCK1 DSPSCK Output Unit indication data clock output 14 PE0 _EPCS Output EEPROM chip selection output 15 PE1 EEPD Input/Output EEPROM serial data input/output 16 PE2 EEPK Output EEPROM serial clock output 17* PE3 PE3 Output (not used) 18 Vss VSS — Ground potential 19 PE4 PCNT1 Outout Vref supply control output of power IC 20 PE5 SYRS Output System LSI register selection output 21 PE6 _SYRD Output System LSI read enable output 22 PE7 _SYWR Output System LSI write enable output 23-30 PD0-PD7 SYD0-SYD7 Input/Output System LSI parallel data bus 31 Vss VSS — Ground potential 32 PC0 PCLAT Output Record audio IC data latch output 33 PC1 _MCPGI Input Microphone plug insertion detection input 34 PC2 _INPGI Input Line/digital plug insertion detection 35 PC3 INPGCK Input Line/digital plug type detection 36 PC4 RCPCNT Input/Output Record circuit power control output 37 PC5 TEST1 Input Test mode setting input 1 38 PC6 TEST0 Input Test mode setting input 0 39 PC7 JPNP Input Kana conversion/Kana input existence/nonexistence discrimination 40 Vcc VCC — Positive power supply 41* PB0 JOG0 Input A spare 0 for JOG 42* PB1 JOG1 Input A spare 1 for JOG 43 PB2 PBLAT Output Audio IC data latch output 44 PB3 LDON Output P.U. laser ON/OFF control output 45 PB4 OPICGA Output P.U. detection sensitivity selection output 46 PB5 RFLAT Output RF amplifier IC data latch output 47 PB6 RACLK Output RF/Audio IC data clock output 48 PB7 RADAT Output RF/Audio IC serial data output 49 Vss VSS — Ground potential 50 PA0 _ELONH Output EL lighting control output H 51 PA1 _ELONL Output EL lighting control output L 52 PA2 _REC Input Unit REC button operation detection input 53 PA3 PBOPON Output Audio IC output stage control output 54 P20 RPLAY Input Remote control PLAY button operation detection input 55 P21 _KHOLD Input Unit key hold switch input 56 TIOCC3 BUZOUT Output Beep sound pulse output 57 MD0 MD0 Input Operation mode selection input 0

IC401 RH-iX2792AF02(IX2792AF):System Microcomputer (1/2)

FUNCTION TABLE OF IC

Pin No.

FunctionPort Name Terminal Name

Input/Output

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

MD-MT821/W

– 42 –

58 MD1 MD1 Input Operation mode selection input 1 59 P23 INNSW Input Mechanism inner SW position detection input 60 WDTOVF WDTOVF Output Watch dog timer (not used) 61 MD2 MD2 Input Operation mode selection input 2 62 RES _RESET Input Microcomputer hard reset input 63 NMI _NMI Input Nonmaskable interruption (not used) 64 STBY _STBY Input Microcomputer standby input (not used) 65 Vcc VCC — Positive power supply 66 XTAL XTAL — Crystal connection terminal 67 EXTAL EXTAL — Crystal connection terminal 68 Vss VSS — Ground potential 69 PF7 _STOP Input Unit STOP button operation detection input 70 PF6 _PLAY Input Unit PLAY button operation detection input 71 PF5 EMPH0 Output Audio emphasis control output 0 72* PF4 PF4 Output Spare 73 PF3 _DINT Input System LSI interruption 74 PF2 _ARQD Input Disk cap opens and closes detection/it is started and required 75 PF1 _ARQP Input It is started by DC-IN, requirement 76 IRQ0 _ARQK Input It is started by the button input, requirement 77 AVcc AVCC — A/D and D/A converter positive power supply 78 Vref VREF — A/D and D/A converter reference voltage 79 AN0 PLVDRY Input Dry battery voltage detection input 80 AN1 PLVDCI Input DC jack voltage detection input 81 AN2 PLVINN Input Lithium battery voltage detection input 82 AN3 RKEY Input Remote control key operation detection input 83 AN4 HKEY1 Input Unit key operation detection input 1 84 AN5 HKEY2 Input Unit key operation detection input 2 85 AN6 TEMP Input Ambient temperature detection input 86 DA1 LDVAR Output P.U. laser power setting output 87 AVss AVSS — A/D and D/A converter ground potential 88 Vss VSS — Ground potential 89* P24 P24 Output (not used) 90 TIOCB4 MCMON Output Internal operation status monitor 91* P26 P26 Output Spare 92 P27 DCNT1M Output Mechanism driver enable output 93 PG0 SENSE Input System LSI servo sense input 94 PG1 _FOK Input Focus OK signal input 95 PG2 _XRST Output System LSI hard reset output 96 PG3 CKSTP Output Microcomputer standby operation monitor output 97 PG4 _EJSW Input Ejection lever operation detection input 98 Vcc VDD — Positive power supply 99 P10 PCNT2 Output Vcc supply control output of power IC 100 P11 HDON Output Recording head current control output

IC401 RH-iX2792AF02(IX2792AF):System Microcomputer (2/2)

Pin No.

FunctionPort Name Terminal Name

Input/Output

In this unit, the terminal with asterisk mark (*) is (open) terminal which is not connected to the outside.

MD-MT821/W

– 43 –

PARTS GUIDE

NOTE:

Parts marked with “ ” are important for maintaining the safety of the set. Be sure to replace parts with specified ones for maintaining the safety and performance of the set.

“HOW TO ORDER REPLACEMENT PARTS”

To have your order filled promptly and correctly, please furnish the following information.

1. MODEL NUMBER 2. REF. No.

3. PART NO. 4. DESCRIPTION

MARK: SPARE PARTS-DELIVERY SECTION

Explanation of capacitors/resistors parts codes

For U.S.A. only

Contact your nearest SHARP Parts Distributor to order.

For location of SHARP Parts Distributor, Please call Toll-Free; 1-800-BE-SHARP

Capacitors

VCC ....................... Ceramic type

VCK........................ Ceramic type

VCT........................ Semiconductor type

VC • • MF ............... Cylindrical type (without lead wire)

VC • • MN............... Cylindrical type (without lead wire)

VC • • TV................ Square type (without lead wire)

VC • • TQ ............... Square type (without lead wire)

VC • • CY ............... Square type (without lead wire)

VC • • CZ ............... Square type (without lead wire)

VC • • • • • • • • • J .. The 13th character represents capacity difference.

("J" ±5%, "K" ±10%, "M" ±20%, "N" ±30%, "C" ±0.25 pF, "D" ±0.5 pF, "Z" +80-20%.)

If there are no indications for the electrolytic capacitors, error is ±20%.

Resistors

VRD ....................... Carbon-film type

VRS........................ Carbon-film type

VRN ....................... Metal-film type

VR • • MF............... Cylindrical type (without lead wire)

VR • • MN ............... Cylindrical type (without lead wire)

VR • • TV ................ Square type (without lead wire)

VR • • TQ ............... Square type (without lead wire)

VR • • CY ............... Square type (without lead wire)

VR • • CZ ............... Square type (without lead wire)

VR • • • • • • • • • J .. The 13th character represents error.

("J" ±5%, "F" ±1%, "D" ±0.5%.)

If there are no indications for other parts, the resistors are ±5% carbon-film type.

MD-MT821(GL) MD-MT821W(BL) MD-MT821W(GL)

MODEL

PRICE RANK

DESCRIPTIONNO.

PARTS CODE NO. PARTS CODE

PRICE

RANK

DESCRIPTION

MD-MT821/W

– 1 –

L751,752 VPBNN100M0000 J AC 10 µH L771 RCILC0359AFZZ J AC 100 µH,Choke L821 RCILC0282AFZZ J AC 22 µH,Choke L851 RCILC0332AFZZ J AC 4.7 µH,Choke L852 RCILC0333AFZZ J AC 10 µH,Choke L862 RCILC0359AFZZ J AC 100 µH,Choke L871 VPBNNR47M0000 J AC 0.47 µH

VIBRATORS

XL201 RCRSC0027AFZZ J AH Crystal,33.8688 MHz XL401 RCRM-0199AFZZ J AD Ceramic,4.194 MHz

CAPACITORS

C100 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum C102,103 RC-KZ1183AFZZ J AC 1 µF,10V C104 VCKYTV1EB273K J AB 0.027 µF,25V C106 RC-KZ1204AFZZ J AB 0.22 µF,10V C107 VCKYTV1EB123K J AB 0.012 µF,25V C109 RC-KZ1184AFZZ J AC 1 µF,16V C110 RC-KZ1204AFZZ J AB 0.22 µF,10V C111 VCKYCY1HB332K J AA 0.0033 µF,50V C112 VCKYCY1CB333K J AA 0.033 µF,16V C121,122 VCCCCY1HH271J J AA 270 pF (CH),50V C123,124 VCCSCY1HL391J J AA 390 pF,50V C130 VCKYCY1CB104K J AB 0.1 µF,16V C161 RC-KZ1183AFZZ J AC 1 µF,10V C165 VCKYCY1CB333K J AA 0.033 µF,16V C171,172 RC-SZ1144AFZZ J AD 33 µF,6.3V,Electrolytic,Tantalum C200 RC-KZ1183AFZZ J AC 1 µF,10V C201 VCSATA0JJ226M J AD 22 µF,6.3V,Electrolytic,Tantalum C202 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum C203 VCKYCY1CB104K J AB 0.1 µF,16V C204 VCKYCY1AB474K J AC 0.47 µF,10V C205 VCKYCY1CB104K J AB 0.1 µF,16V C206 RC-KZ1183AFZZ J AC 1 µF,10V C207 VCKYCY1CB104K J AB 0.1 µF,16V C211 VCCCCY1HH5R0C J AA 5 pF (CH),50V C212 VCCCCY1HH8R0D J AA 8 pF (CH),50V C351 VCCCCY1HH180J J AA 18 pF (CH),50V C353 VCSAFA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum C354 VCKYCY1CB104K J AB 0.1 µF,16V C357 VCKYCY1CB104K J AB 0.1 µF,16V C361 VCKYTV1HB393K J AB 0.039 µF,50V C401 VCKYCY1CB104K J AB 0.1 µF,16V C431 RC-KZ1206AFZZ J AC 0.47 µF,10V C481 VCKYCY1CB104K J AB 0.1 µF,16V C491 RC-KZ1182AFZZ J AB 0.1 µF,16V C500 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum C501,502 VCKYCY1HB222K J AA 0.0022 µF,50V C503,504 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,Tantalum C505,506 VCKYCY1HB102K J AA 0.001 µF,50V C507 VCSATA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum C508 RC-KZ1183AFZZ J AC 1 µF,10V C509,510 VCKYTV1CF225Z J AC 2.2 µF,16V C511 RC-KZ1183AFZZ J AC 1 µF,10V C600 VCEAPW0JW226M J AC 22 µF,6.3V,Electrolytic C601~604 RC-KZ1183AFZZ J AC 1 µF,10V C605 VCKYCY1CB104K J AB 0.1 µF,16V C608 RC-KZ1184AFZZ J AC 1 µF,16V C609,610 RC-KZ1183AFZZ J AC 1 µF,10V C622 VCKYCY1CB104K J AB 0.1 µF,16V C651 VCKYTV1CF105Z J AB 1 µF,16V C701,702 VCSATN0JJ106M J AC 10 µF,6.3V,Electrolytic,Tantalum C703 VCKYCY1EB103K J AA 0.01 µF,25V C711,712 VCCCCY1HH101J J AA 100 pF (CH),50V C713,714 RC-KZ1183AFZZ J AC 1 µF,10V C715 VCKYCY1CB104K J AB 0.1 µF,16V C721,722 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,Tantalum C723,724 VCKYCY1HB102K J AA 0.001 µF,50V C725,726 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,Tantalum C731 VCKYCY1CF224Z J AB 0.22 µF,16V C733,734 RC-KZ1182AFZZ J AB 0.1 µF,16V C738 VCKYCY1EB223K J AB 0.022 µF,25V C751,752 VCKYTV1CB823K J AB 0.082 µF,16V C753,754 VCKYTV1CF105Z J AB 1 µF,16V C755 VCKYCY1EB103K J AA 0.01 µF,25V C756,757 VCKYTV1AB684K J AC 0.68 µF,10V C758 VCSATA1AJ335M J AB 3.3 µF,10V,Electrolytic,Tantalum C759,760 VCKYCY1CB273K J AA 0.027 µF,16V C761,762 VCKYTV1CF225Z J AC 2.2 µF,16V

INTEGRATED CIRCUITS

IC101 VHIIR3R55//-1 J AQ RF Signal,Processor,IR3R55 IC200 VHI62FP2502-1 J AE Power Drive,62FP2002 IC201 VHILR37811/-1 J BB ENDEC LSI,LR37811 IC202 RH-IX2723AFZZ J BC 16Bit D-RAM,IX2723AF

(Serial 903ЧЧЧЧЧ)

IC202 RH-IX2735AFZZ J AX 16Bit D-RAM,IX2735AF

(Serial 904ЧЧЧЧЧ~) IC203 VHI62FP2002-1 J AE 2V Regulator,62FP2002 IC351 VHI74ACT02T-1 J AE Head Driver,74ACT02T IC353 VHIHAT2051T-1 J AF FET X2 Package IC,HAT2051T IC354 VHIHAT2050T-1 J AF FET X2 Package IC,HAT2050T IC401 RH-IX2792AF02 J AW System Microcomputer,

IX2792AF IC402 VHIS29L294A-1 J AH EEPROM,S29L294A IC404 VHISN1G00DC-1 J AD NAND Gate,SN1G00DC IC501 VHIAK4519VF-1 J AQ AD/DA Converter,AK4519VF IC601 VHI17A39TD/-1 J AP PWM Driver,17A39TD IC651 VHILB1930M/-1 J AH Motor Driver,LB1930M IC701 VHIIR3R54N/-1 J AQ Audio Amp.,IR3R54N IC703 VHIIR3R54N/-1 J AQ Audio Amp.,IR3R54N IC771 VHITK71225M-1 J AE 2.5V Regulator,TK71225M IC801 VHIHN1C01FU-1 J AD Power Transistor,HN1C01FU IC802 VHIFDC634P/-1 J AG Constant Current Drive,

FDC634P IC821 VHINDS332P/-1 J AD Power Drive,NDS332P IC830 VHIIR3M12N/-1 J AM DC/DC Converter,IR3M12N IC841 VHIXC66DS01-1 J AF Reset 2.35V

Regulator,XC66DS01 IC851 VHINDS331N/-1 J AD Power Drive,NDS331N IC871 VHITK71345M-1 J AE 4.5V Regulator (ON/OFF),

TK71345M IC901 VHIBA6966FV-1 J AM 3-Phase Brush Leess Driver,

BA6966FV

TRANSISTORS

Q101 VS2SA17457/-1 J AB Silicon,PNP,2SA17457 Q711 VSRN1444A//-1 J AC Digital,NPN,RN1444 A Q721 VS2SC4213B/-1 J AC Silicon,NPN,2SC4213 B Q841 VSRN1104///-1 J AB Digital,NPN,RN1104 Q891 VS2SA1873GR-1 J AC Silicon,PNP,2SA1873 GR Q901 VSRN1104///-1 J AB Digital,NPN,RN1104

DIODES

D351 VHDSBE803//-1 J AD Silicon,SBE803 D431 VHD1SS361//-1 J AB Silicon,1SS361 D491 VHE015Z5R1Y-1 J AD Zener,5.1V,015Z5.1Y D492 VHE15AZ7R5Y-1 J AC Zener,7.5V,15AZ7.5Y D493 VHE015Z5R1Y-1 J AD Zener,5.1V,015Z5.1Y D494 VHE15AZ7R5Y-1 J AC Zener,7.5V,15AZ7.5Y D800 VHD1SS360//-1 J AB Silicon,1SS360 D801 VHDSB10015C-1 J AD Silicon,SB10015C D802 VHE015Z5R1Y-1 J AD Zener,5.1V,015Z5.1Y D803,804 VHD1SS400//-1 J AB Silicon,1SS400 D821 VHDF10J2E//-1 J AC Silicon,F10J2E D836 VHDMA793///-1 J AC Silicon,MA793 D841 VHDRB731U//-1 J AC Silicon,RB731U D851 VHD1SS389//-1 J AB Silicon,1SS389 D852 VHDU1FWJ44N-1 J AD Silicon,U1FWJ44N D861 VHDF10J2E//-1 J AC Silicon,F10J2E PH901 VHPGP1S93K/-1 J AF Phote Interrupter,GP1S93K

COILS

L100 VPBNN100M0000 J AC 10 µH L171 RCILC0356AFZZ J AC 10 µH,Choke L204 RCILC0353AFZZ J AB Tip Solid Induction,100mA L452 RCILC0352AFZZ J AB Tip Impeder,150mA L453,454 RCILC0353AFZZ J AB Tip Solid Induction,100mA L456~458 RCILC0353AFZZ J AB Tip Solid Induction,100mA L500 VPCBM220K0000 J AC 22 µH L600 RCILC0331AFZZ J AC 2.2 µH,Choke L601~604 RCILC0358AFZZ J AC 47 µH,Choke L608~610 RCILC0358AFZZ J AC 47 µH,Choke L702,703 RCILC0353AFZZ J AB Tip Solid Induction,100mA L704 RCILC0352AFZZ J AB Tip Impeder,150mA L711 RCILC0352AFZZ J AB Tip Impeder,150mA L712~714 RCILC0353AFZZ J AB Tip Solid Induction,100mA

NO.

PRICE

RANK

DESCRIPTIONPARTS CODE

NO. PARTS CODE

PRICE RANK

DESCRIPTION

MD-MT821/W

C765,766 RC-KZ1205AFZZ J AB 0.33 µF,10V C771 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum C773 RC-KZ1204AFZZ J AB 0.22 µF,10V C774 VCKYTV1CF105Z J AB 1 µF,16V C775 VCKYCY1EB103K J AA 0.01 µF,25V C800 RC-KZ1183AFZZ J AC 1 µF,10V C801 VCKYCY1CB104K J AB 0.1 µF,16V C805 VCEAPW0JW107M J AD 100 µF,6.3V,Electrolytic C806 RC-KZ1186AFZZ J AD 3.3 µF,10V C807 VCKYTV1EB103K J AA 0.01 µF,25V C808 RC-KZ1183AFZZ J AC 1 µF,10V C821 VCCCCY1HH560J J AA 56 pF (CH),50V C822 VCCCCY1HH100D J AA 10 pF (CH),50V C823 VCKYCY1CB104K J AB 0.1 µF,16V C825 RC-KZ1185AFZZ J AD 2.2 µF,10V C826 VCEAPW0GW227M J AD 220 µF,4.0V,Electrolytic C831 RC-KZ1183AFZZ J AC 1 µF,10V C833 RC-KZ1205AFZZ J AB 0.33 µF,10V C836,837 VCKYCY1CB104K J AB 0.1 µF,16V C841 VCSAFA0JJ106M J AD 10 µF,6.3V,Electrolytic,Tantalum C842 RC-KZ1183AFZZ J AC 1 µF,10V C853 VCCCCY1HH470J J AA 47 pF (CH),50V C854 VCKYCY1EB103K J AA 0.01 µF,25V C855 VCCCCY1HH181J J AA 180 pF (CH),50V C856 RC-KZ1184AFZZ J AC 1 µF,16V C857 VCKYTQ0JB106K J AE 10 µF,6.3V C858 VCCCCY1HH470J J AA 47 pF (CH),50V C859 VCCCCY1HH101J J AA 100 pF (CH),50V C861 RC-KZ1184AFZZ J AC 1 µF,16V C868 VCKYTV1CF105Z J AB 1 µF,16V C869 VCSATE0JJ476M J AD 47 µF,6.3V,Electrolytic,Tantalum C871 RC-KZ1184AFZZ J AC 1 µF,16V C872 VCSATA1AJ106M J AE 10 µF,10V,Electrolytic,Tantalum C891 VCKYCY1AB474K J AC 0.47 µF,10V C902 VCKYCY1EB103K J AA 0.01 µF,25V C903 RC-KZ1186AFZZ J AD 3.3 µF,10V C905~907 VCKYCY1HB222K J AA 0.0022 µF,50V C908 RC-KZ1204AFZZ J AB 0.22 µF,10V C909,910 VCKYCY1CB333K J AA 0.033 µF,16V C911 VCKYCY1CB104K J AB 0.1 µF,16V

RESISTORS

VRS-CY1JB000J J AA 0 ohm,Jumper,0.8×1.55mm,

Green

VRS-TV2AB000J J AA 0 ohm,Jumper,1.25×2mm,Green L202 VRS-TV2AB220J J AA 22 ohms,1/10W L651 VRS-TV2AB560J J AA 56 ohms,1/10W L710 VRS-TV2AB470J J AA 47 ohms,1/10W R101~104 VRS-CY1JB223J J AA 22 kohms,1/16W R105 VRS-CY1JB394J J AA 390 kohms,1/16W R106 VRS-CY1JB563J J AA 56 kohms,1/16W R154 VRS-CY1JB122J J AA 1.2 kohms,1/16W R161 VRS-CY1JB122J J AA 1.2 kohms,1/16W R204 VRS-CY1JB102J J AA 1 kohm,1/16W R205 VRS-CY1JB684D J AA 680 kohms,1/16W R206 VRS-CY1JB274D J AA 270 kohms,1/16W R207 VRS-CY1JB681J J AA 680 ohms,1/16W R222 VRS-CY1JB105J J AA 1 Mohm,1/16W R351 VRS-TV2AB5R6J J AA 5.6 ohms,1/10W R361 VRS-TQ2BB150J J AA 15 ohms,1/8W R403 VRS-CY1JB102J J AA 1 kohm,1/16W R404 VRS-CY1JB104J J AA 100 kohm,1/16W R405 VRS-CY1JB103J J AA 10 kohm,1/16W R406 VRS-CY1JB104J J AA 100 kohm,1/16W R407 VRS-CY1JB103J J AA 10 kohm,1/16W R408 VRS-CY1JB104J J AA 100 kohm,1/16W R411 VRS-CY1JB104J J AA 100 kohm,1/16W R412 VRS-CY1JB103J J AA 10 kohm,1/16W R413~415 VRS-CY1JB102J J AA 1 kohm,1/16W R422 VRS-CY1JB104J J AA 100 kohm,1/16W R423 VRN-CY1JD223D J AA 22 kohms,1/16W,1%,Metal Film R424,425 VRS-CY1JB223J J AA 22 kohms,1/16W R426 VRN-CY1JD223D J AA 22 kohms,1/16W,1%,Metal Film R431 VRS-CY1JB334J J AA 330 kohms,1/16W R451 VRS-CY1JB562J J AA 5.6 kohms,1/16W R452 VRS-CY1JB822J J AA 8.2 kohms,1/16W R453 VRS-CY1JB183J J AA 18 kohms,1/16W R455 VRS-CY1JB562J J AA 5.6 kohms,1/16W R456 VRS-CY1JB822J J AA 8.2 kohms,1/16W R457 VRS-CY1JB183J J AA 18 kohms,1/16W R458 VRS-CY1JB563J J AA 56 kohms,1/16W

R481,482 VRN-CY1JD333D J AA 33 kohms,1/16W,1%,Metal Film R492 VRS-CY1JB102J J AA 1 kohm,1/16W R500 VRS-CY1JB4R7J J AA 4.7 ohms,1/16W R501,502 VRS-CY1JB471J J AA 470 ohms,1/16W R601 VRS-CY1JB563J J AA 56 kohms,1/16W R701,702 VRS-CY1JB220J J AA 22 ohms,1/16W R703 VRS-CY1JB104J J AA 100 kohm,1/16W R711,712 VRS-CY1JB562J J AA 5.6 kohms,1/16W R713,714 VRS-CY1JB103J J AA 10 kohm,1/16W R715,716 VRS-CY1JB104J J AA 100 kohm,1/16W R717 VRS-CY1JB102J J AA 1 kohm,1/16W R719,720 VRS-CY1JB822J J AA 8.2 kohms,1/16W R723,724 VRS-CY1JB682J J AA 6.8 kohms,1/16W R725 VRS-CY1JB101J J AA 100 ohm,1/16W R726 VRS-CY1JB393J J AA 39 kohms,1/16W R727 VRS-CY1JB822J J AA 8.2 kohms,1/16W R728 VRS-CY1JB102J J AA 1 kohm,1/16W R729,730 VRS-CY1JB272J J AA 2.7 kohms,1/16W R753 VRS-CY1JB104J J AA 100 kohm,1/16W R754 VRS-CY1JB274J J AA 270 kohms,1/16W R756,757 VRS-CY1JB273J J AA 27 kohms,1/16W R761,762 VRS-CY1JB432J J AA 4.3 kohms,1/16W R763,764 VRS-CY1JB680J J AA 68 ohms,1/16W R765,766 VRS-CY1JB180J J AA 18 ohms,1/16W [MT821W] R765,766 VRS-CY1JB8R2J J AA 8.2 ohms,1/16W [MT821] R767,768 VRS-CY1JB102J J AA 1 kohm,1/16W R769,770 VRS-CY1JB153J J AA 15 kohms,1/16W R800 VRS-TV2AB223J J AA 22 kohms,1/10W R801 VRN-CY1JD222D J AA 2.2 kohms,1/16W,1%,Metal Film R802 VRS-CY1JB102J J AA 1 kohm,1/16W R804 VRN-CY1JD681D J AA 680 ohms,1/16W,1%,Metal Film R805 VRS-CY1JB684D J AA 680 kohms,1/16W R806 VRS-CY1JB304D J AA 300 kohms,1/16W R807 VRN-CY1JD104D J AA 100 kohm,1/16W,1%,Metal Film R808 VRS-CY1JB105D J AA 1 Mohm,1/16W R809 VRS-CY1JB222J J AA 2.2 kohms,1/16W R810 VRS-CY1JB562J J AA 5.6 kohms,1/16W R811,812 VRN-CY1JD104D J AA 100 kohm,1/16W,1%,Metal Film R815 VRN-CY1JD563D J AA 56 kohms,1/16W,1%,Metal Film R816 VRN-CY1JD243D J AA 24 kohms,1/16W,1%,Metal Film R821 VRS-CY1JB104J J AA 100 kohm,1/16W R823 VRS-CY1JB104J J AA 100 kohm,1/16W R824 VRN-CY1JD274D J AA 270 kohms,1/16W,1%,Metal Film R825 VRS-CY1JB106J J AA 10 Mohm,1/16W R826 VRN-CY1JD224D J AA 220 kohms,1/16W,1%,Metal Film R831 VRN-CY1JD184D J AA 180 kohms,1/16W,1%,Metal Film R832 VRN-CY1JD204D J AA 200 kohms,1/16W,1%,Metal Film R841~843 VRN-CY1JD104D J AA 100 kohm,1/16W,1%,Metal Film R844 VRS-CY1JB564J J AA 560 kohms,1/16W R851 VRS-CY1JB103J J AA 10 kohm,1/16W R852 VRS-CY1JB104J J AA 100 kohm,1/16W R853 VRN-CY1JD304D J AA 300 kohms,1/16W,1%,Metal Film R855 VRN-CY1JD304D J AA 300 kohms,1/16W,1%,Metal Film R857 VRS-CY1JB104J J AA 100 kohm,1/16W R858 VRS-CY1JB333J J AA 33 kohms,1/16W R860 VRS-CY1JB333J J AA 33 kohms,1/16W R872 VRS-CY1JB104J J AA 100 kohm,1/16W R891 VRS-CY1JB102J J AA 1 kohm,1/16W R892 VRS-CY1JB820J J AA 82 ohms,1/16W R893 VRS-CY1JB102J J AA 1 kohm,1/16W R894 VRS-CY1JB220J J AA 22 ohms,1/16W R901,902 VRS-CY1JB1R0J J AA 1 ohm,1/16W R903 VRS-CY1JB331J J AA 330 ohms,1/16W R904 VRS-CY1JB333J J AA 33 kohms,1/16W R905 VRS-CY1JB104J J AA 100 kohm,1/16W R906 VRS-CY1JB274J J AA 270 kohms,1/16W R907 VRS-CY1JB184J J AA 180 kohms,1/16W R908 VRS-CY1JB104J J AA 100 kohm,1/16W R909 VRS-CY1JB103J J AA 10 kohm,1/16W R920 VRS-CY1JB104J J AA 100 kohm,1/16W R921 VRS-CY1JB331J J AA 330 ohms,1/16W R922 VRS-CY1JB104J J AA 100 kohm,1/16W

OTHER CIRCUITRY PARTS

CN101 QCNCW801XAFZZ J AH Socket,22Pin CN451 QCNCW804NAFZZ J AE Socket,13Pin CN482 QCNCW804GAFZZ J AD Socket,7Pin CN601 QCNCW716RAFZZ J AF Socket,16Pin

! F800 QFS-L102AAFNO J AE Fuse,T1A L 250V

J701 VHLGP1FB201-1 J AQ Jack,Optical/LINE IN J702 QJAKM0189AFZZ J AE Jack,MIC IN

– 2 –

PRICE RANK

DESCRIPTIONNO.

PARTS CODE NO. PARTS CODE

PRICE

RANK

DESCRIPTION

MD-MT821/W

211 PSHEZ1022AFZZ J AB Sheet,Extension Battery

Terminal 212 QTANB9401AFFQ J AC Terminal,Battery + 213 QTANB9402AFFQ J AB Terminal,Battery 214 PFLT-1145AFZZ J AB Pickup Flexible PWB Protect Felt 215 GFTAB1365AFSC J AE Lid,Battery [MT821W (BL)] 215 GFTAB1365AFSF J AE Lid,Battery [MT821 (GL)/

MT821W (GL)] 216 PCUSG0690AFZZ J AB Cushion,Mechanism A 217 QTANZ9168AFFQ J AG Extension Battery Terminal 218 RUNTK0504AFZZ J AT Key Switch Flexible PWB Ass'y 219 RUNTZ0719AFZZ J AY LCD Ass'y 221 PCUSG0689AFZZ J AB Cushion,Preventive Vibration 222 PSHET0419AFZZ J AB Sheet,Insulation 223 HDECQ0595AFSA J AH Plate,Decoration 225 JKNBZ2173AFSA J AH Knob,Search 226 JKNBZ2170AFSA J AH Button,Function A 227 JKNBZ2171AFSA J AH Button,Function B 228 JKNBZ2172AFSA J AH Button,Function C 229 JKNBZ2175AFSA J AC Button,REC 230 PSHEZ1018AFZZ J AB Sheet,Function Button A 231 PSHEZ1019AFZZ J AB Sheet,Function Button B 232 PSHEZ1020AFZZ J AB Sheet,Function Button C 233 LANGT1957AFM1 J AG Bracket,Display Ass'y 234 PCUSG0688AFZZ J AB Cushion,Display Bracket 235 PFLT-1127AFZZ J AA Flexible Felt 236 PFLT-1147AFZZ J AB IC Felt 238 PSHET0421AFZZ J AB Sheet,Search Knob 239 PCUSG0691AFZZ J AB Cushion Mechanism B 240 PSHET0423AFZZ J AB Sheet,Display Bracket 241 PSHEZ1068AFZZ J AB Sheet,LCD 242 PSHEZ1070AFZZ J AB Sheet,LCD Insulation 244 TLABS0504AFZZ J AD Caution,Laser

[For MT821W Only] 246 TLABS0505AFZZ J AD Label,Laser [For MT821W Only] 601 LX-BZ0908AFF3 J AA Screw,ø1.4×2.0mm 602 LX-BZ0805AFFN J AB Screw,ø1.7×2.5mm 603 LX-BZ0967AFFC J AB Screw,ø1.4×2mm 604 LX-CZ0107AFFF J AA Screw,ø1.2×2.5mm

PACKING PARTS (MD-MT821W Only)

SPAKA2679AFZZ J AD Packing Add. [MT821W] SPAKA2704AFZZ J AD Packing Add. [MT821] SPAKC6691AFZZ J Packing Case [MT821W (GL)] SPAKC6790AFZZ J Packing Case [MT821W (BL)] SPAKZ0465AFZZ J AD Pad,AC Adaptor [MT821W] SPAKZ0489AFZZ J Pad,AC Adaptor [MT821]

ACCESSORIES

GCASZ0086AFSA J AX Battery Case PCAPH8107AFZZ J AD Headphones Rubber Cap QCNWG0382AFZZ J AK Connecting Cord,RCA Type QCNWG0422AFZZ J AQ Connecting Cord,Optical Type QPLGA0250AFZZ J AF Plug,AC Adaptor

[MT821W for Central South

America/Saudi Arabia/

Philippines/Brasil Only]

! RADPA3489AFZZ J AV AC Adaptor [MT821] ! RADPA5402AFZZ J BF AC Adaptor

[MT821W Except for Taiwan/

Hong Kong]

! RADPA5403AFZZ J BF AC Adaptor

[MT821W for Taiwan]

! RADPA8493AFZZ J BH AC Adaptor

[MT821W for Hong Kong]

RPHOH0176AFZZ J AR Earphones [MT821W] RPHOH0185AFZZ J AW Headphones [MT821] RRMCW0043AFSC J BB Remote Control [MT821W (BL)] RRMCW0043AFSD J BB Remote Control

[MT821/MT821W (GL)]

TCAUH0341AFZZ J AD Caution,Headphones [MT821] TCAUZ0450AFZZ J AD Label,Operation Manual

[MT821W for Taiwan]

TCAUZ0475AFZZ J AD Lid Battery Attention Card TGANE1230AFZZ J Warranty Card

[MT821W for Philippines]

TGANZ1096AF05 J Warranty Card

[MT821W (BL) for Taiwan]

TGANZ1096AF06 J Warranty Card

[MT821W (GL) for Taiwan]

– 3 –

J703 QJAKM0205AFZZ J AH Jack,Remote Control/Head-

phones J801 QJAKC0142AFZZ J AE Jack,DC M901 RMOTV0524AFZZ J AS Motor Ass'y [Spindle] M902 RMOTV0511AFZZ J AT Motor Ass'y [Sled] M903 RMOTV0512AFM1 J AR Motor Ass'y [Lift] SW401 QSW-M0001AWZZ J AD Switch,Push Type [EJECT] SW402 QSW-S0948AFZZ J AC Switch,Slide Type [HOLD] SW403 QSW-M0172AFZZ J AD Switch,Push Type [Disc In] SW902 QSW-M0170AFZZ J AD Switch,Push Type [Disc Protect]

MECHANICAL PARTS

1 NGERH0597AFZZ J AC Wheel,Drive 2 NSFTD0334AFZZ J AD Screw,Drive 3 LHLDX3141AFM1 J AP Cartridge Holder Ass'y 4 MSPRT1625AFFJ J AD Spring,Eject Lever 5 LANGF1610AFFW J AD Bracket,Cancel 6 LCHSM0944AFM1 J AT Main Chassis Ass'y 7 PCUSG0599AFZZ J AB Cushion 8 QPWBH0337AFM1 J AN Mechanism Flexible PWB Ass'y 8- 1 ———— — Mechanism Flexible PWB

(Not Replacement Item) 8- 2(SW902) QSW-M0170AFZZ J AD Switch,Push Type [Disc Protect] 8- 3(PH901) VHPGP1S93K/-1 J AF Phote Interrupter,GP1S93K 9 MSPRP0925AFFJ J AD Bracket,Driver Screw 10 PCOVP1339AFZZ J AD Cover,Mechanism 11 MARMM0170AFM1 J AK Magnetic Field Block 13 NGERH0603AFZZ J AE Gear,Drive

! 15 RCTRH8175AFZZ J BM Optical Pickup Unit [MT821W] ! 15 RCTRH8175AF10 J BM Optical Pickup Unit [MT821]

16 MSPRP0922AFFJ J AD Spring,Drive Grip 17 MSPRP0923AFFJ J AD Spring,Thrust Plate 18 NSFTM0292AFFW J AC Shaft,Guide 20 MLEVF2641AFFW J AD Lever,Eject 23 QPWBH0338AFZZ J AH Magnetic Head Flexible PWB 25 MLEVF2637AFM1 J AH Lift Working Lever Ass'y 26 MLEVF2638AFFW J AD Lever,Block 27 MLEVF2639AFFW J AD Lever,Lift Joint 28 MLEVF2640AFFW J AE Lever,Lift 29 MSPRD1362AFFJ J AD Spring,Lift Lever 30 RCILH0112AFZZ J AM Magnetic Head 501 LX-BZ0804AFFF J AA Screw,ø1.4×2.2mm 502 LX-JZ0154AFZZ J AA Screw,ø1.4×2.8mm 503 LX-BZ0823AFZZ J AA Screw,ø1.4×1.2mm 504 LX-WZ9290AFZZ J AA Washer,ø0.8×ø2.4×0.2mm 505 LX-BZ0800AFZZ J AA Screw,ø1.4×2.5mm 506 XSPSN14P01500 J AA Screw,ø1.4×1.5mm 508 LX-JZ0148AFZZ J AA Screw,ø1.7×3mm 509 XWSSD14-05000 J AA Washer,ø1.4×0.5mm 510 LX-BZ0960AFZZ J AB Screw,ø1.4×1.5mm 511 LX-WZ9296AFZZ J AA Washer,ø1.5×ø3.5×0.25mm 512 LX-BZ0974AFZZ J AB Screw,ø1.4×5.5mm 513 LX-BZ0991AFZZ J AB Screw,ø1.2×1.6mm M901 RMOTV0524AFZZ J AS Motor Ass'y [Spindle] M902 RMOTV0511AFZZ J AT Motor Ass'y [Sled] M903 RMOTV0512AFM1 J AR Motor Ass'y [Lift]

CABINET PARTS

201 GFTAC3147AFM3 J AX Top Cabinet Ass'y

[MT821W(BL)] 201 GFTAC3147AFM4 J AX Top Cabinet Ass'y

[MT821 (GL)/MT821W (GL)] 202 GCABA2898AFSA J AN Center Cabinet A 203 GCABA2899AFSA J AH Center Cabinet B 204 CCABD4395AF05 J Bottom Lid Ass'y [MT821 (GL)] 204 CCABD4401AF03 J Bottom Lid Ass'y [MT821W (BL)] 204 CCABD4401AF05 J Bottom Lid Ass'y [MT821W (GL)] 204- 1 ———— — Bottom Lid

(Not Replacement Item) 204- 2 GCOVA2307AFSA J AC Cover,DC Jack 204- 3 JKNBZ2113AFSA J AE Knob,Hold 204- 4 PSHET0413AFZZ J AC Sheet,Insulation 205 GCOVA2306AFSA J AC Cover,Extension Battery

Terminal 206 JKNBZ2178AFSA J AE Knob,Eject 207 LHLDZ1756AFSA J AC Cover,+ Terminal 208 LHLDZ3186AFM1 J AS Main Frame Ass'y 209 PCUSG0534AFZZ J AC Insulator 210 PCUSG0641AFSA J AB Insulator

NO.

PRICE

RANK

DESCRIPTIONPARTS CODE

NO. PARTS CODE

PRICE RANK

DESCRIPTION

MD-MT821/W

TINSZ1393AFZZ J AH Operation Manual [MT821] TINSZ1394AFZZ J AE Quick Guide [MT821 Only] TINSZ1395AFZZ J AR Operation Manual [MT821W] TLABG0527AFZZ J AC Label,Hong Kong

[MT821W for Hong Kong]

TLABG0527AFZ1 J AC Label,Hong Kong

[MT821W for Hong Kong]

TLABH0699AFZZ J Label,Translation

[MT821W for Taiwan]

TLABM0659AFZZ J Label,Specification

[MT821W (BL)]

TLABM0660AFZZ J Label,Specification

[MT821W (GL)]

TLABR1049AFZZ J Label,Bar Code

[MT821W (GL) for Central South America/Brasil]

TLABR1050AFZZ J Label,Bar Code

[MT821W (BL) for Central

South America/Brasil] TLABS0478AFZZ J AC Label,CPA [MT821W] TLABZ2560AFZZ J Label,Import Company

[MT821W (BL) for Taiwan] TLABZ2561AFZZ J Label,Import Company

[MT821W (GL) for Taiwan] TLSTS0126AFZZ J Service Station

[MT821W for Taiwan] TLSTS0127AFZZ J Service Station

[MT821W for Philippines] UBAGC0083AFSA J AH Carrying Case UBATI0088AFSA J BD Rechargeable,Battery UBNDT0086AFSA J AF Strap

[MT821/MT821W (GL)] UBNDT0086AFSD J AF Strap [MT821W (BL)]

P.W.B. ASSEMBLY (Not Replacement Item)

PWB-A DCYO-3103AF93 J — Main (Combined Ass'y) [MT821] PWB-A DCYO-3105AF93 J — Main (Combined Ass'y)

[MT821W]

OTHER SERVICE PARTS

UDSKM0001AFZZ J AZ Recording Mini Disc 88GMMD-110 J BV High Reflection Disc MMD-110

(TEAC Test MD) 88GMMD-212 J BU Low Reflection Disc MMD-212

(TEAC Test MD)

– 4 –

MD-MT821/W

A

B

C

D

E

F

G

H

1

23456

Figure 5 MD MECHANISM EXPLODED VIEW

– 5 –

M903

M902

M901

503x2

502x3

509x2

501x2

11

505

30

23

510

513

8-2

(SW902)

8-1

8

8-3(PH901)

508

503

508

9

25

17

1

2

16

18

15

512

511

27

504

13

503

5

3

10

29

20

4

28

26

6

7

506

MD-MT821/W

A

B

C

D

E

F

G

H

1

23456

Figure 6 CABINET EXPLODED VIEW

– 6 –

225

201

223

229

226

227

228

232

219

218

233

601

604

603x2

215

210x2

202

206

205

217

208

204

204-4

204-2

204-1

204-3

603x2

603

235

236

203

MD MECHANISM

241

242

231

230

238x2

234

240

603x2

211

216

207

212

214

209

239

213

PWB-A

602

222

221

244

246

For MT821W Only

MD-MT821/W

– 7 –

PACKING OF THE SET (MD-MT821 ONLY)

SETTING POSITION OF SWITCHES AND KNOBS

UNIT HOLD OFF

Remote Control HOLD CANSEL

Battery Case

Connecting Cord, RCA Type

AC Adaptor

Headphones

Remote Control

Packing Add. SPAKA2704AFZZ

Packing Case SPAKC6785AFZZ

Pad, AC Adaptor SPAKZ0489AFZZ

Rechargeable, Battery

Strap

Connecting Cord, Optical Type

Operation Manual

Quick Guide

Caution, Headphones

: Not Replacement Item

Carrying Case

Lid Battery Attention Card

MD-MT821/W

— M E M O —

– 8 –

MD-MT821/W

No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any from or by any means, electronic, mechanical, photocopying, recording, or otherwise, without prior written permission of the publisher.

A9904-1565NS•HA•M

SHARP CORPORATION Communication Systems Group Quality & Reliability Control Center Higashihiroshima, Hiroshima 739-0192, Japan

Printed in Japan

©

SC•EX